Common use of Substitution for Treasury Securities and the Creation of Corporate Units Clause in Contracts

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are components of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Three-Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Three-Day Remarketing Period or, if none of the Remarketings during such Three‑Day Three-Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Three-Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 _____ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 _____ Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 _____ Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000________, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 _____ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are a component of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 8,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 8,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 8,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000400,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 8,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are components of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Three-Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Three-Day Remarketing Period or, if none of the Remarketings during such Three‑Day Three-Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Three-Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 4,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 4,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; oror DB1/ 132090770.6 (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 4,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000200,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 4,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are a component of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 160,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 160,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 160,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,0008,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 160,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising a Three‑Day Three-Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Three-Day Remarketing Period or, if none of the Remarketings during such Three‑Day Three-Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Three-Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. DB1/ 112040219.3 A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are a component of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 100,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 100,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; oror DB1/ 112040219.3 (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 100,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,0005,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 100,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. DB1/ 116050876.5 A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are components of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 400,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 400,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; oror DB1/ 116050876.5 (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 400,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,00020,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 400,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are a component of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit Units by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, having an aggregate principal amount equal to the aggregate principal amount at maturity of, and in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the a Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing or a Special Tax Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made only on or prior to 5:00 p.m., New York City time, on the second fifth Business Day immediately preceding the first day of the Final Three‑Day Remarketing PeriodPurchase Contract Settlement Date; and if the a Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing of the Debt Securities or a Special Tax Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made only on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 __ Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in DebenturesDebt Securities, or (ii) only in integral multiples of 80,000 ______ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to To create 20 __ Corporate Units (if a Special Tax Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures Debt Securities remain components of Corporate Units), or 80,000 ______ Corporate Units (if a Special Tax Event Redemption or a Mandatory Redemption has occurred or the a Remarketing Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units Debt Securities as a result of a Successful Remarketing) (or such other number successful remarketing of Corporate Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment DateDebt Securities), the Treasury Unit Holder shall (a) if the a Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing or a Special Tax Event Redemption or a Mandatory Redemption, on or prior to the second fifth Business Day immediately preceding the first day of the Final Three‑Day Remarketing PeriodPurchase Contract Settlement Date, deposit with the Collateral Agent $1,000 [1,000] in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury UnitDebt Securities; or (b) if the a Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing of the Debt Securities or a Special Tax Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the appropriate Treasury Portfolio for each 80,000 Corporate Units being created by the Holder, and having an aggregate principal amount at maturity of $4,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit_________; andor (c) in each case, transfer and surrender the related 20 __ Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 ______ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date)Units, to the Purchase Contract Agent accompanied by an instruction a notice to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures Debt Securities or the appropriate Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture Debt Securities or the appropriate Applicable Ownership Interest in the applicable Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above above, from the Purchase Contract Agent, the Collateral Agent shall release the related Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the HoldersAgent.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are a component of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Three-Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Three-Day Remarketing Period or, if none of the Remarketings during such Three‑Day Three-Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Three-Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 _____ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 _____ Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 _____ Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000________, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 _____ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are a component of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising in a Three‑Day Three-Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Three-Day Remarketing Period or, if none of the Remarketings during such Three‑Day Three-Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Three-Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the first day of the Final Three‑Day Three-Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,000$ , which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit Units by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, having an aggregate principal amount equal to the aggregate principal amount at maturity of, and in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the a Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing or a Special Tax Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made only on or prior to 5:00 p.m., New York City time, on the second fifth Business Day immediately preceding the first day of the Final Three‑Day Remarketing PeriodPurchase Contract Settlement Date; and if the a Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing of the Debt Securities or a Special Tax Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made only on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in DebenturesDebt Securities, or (ii) only in integral multiples of 80,000 40,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to To create 20 Corporate Units (if a Special Tax Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures Debt Securities remain components of Corporate Units), or 80,000 40,000 Corporate Units (if a Special Tax Event Redemption or a Mandatory Redemption has occurred or the a Remarketing Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units Debt Securities as a result of a Successful Remarketing) (or such other number successful remarketing of Corporate Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment DateDebt Securities), the Treasury Unit Holder shall (a) if the a Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing or a Special Tax Event Redemption or a Mandatory Redemption, on or prior to the second fifth Business Day immediately preceding the first day of the Final Three‑Day Remarketing PeriodPurchase Contract Settlement Date, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury UnitDebt Securities; or (b) if the a Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures Debt Securities as a component of Corporate Units as a result of a Successful Remarketing successful remarketing of the Debt Securities or a Special Tax Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the appropriate Treasury Portfolio for each 80,000 Corporate Units being created by the Holder, and having an aggregate principal amount at maturity of $4,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit2,000,000; andor (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 40,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date)Units, to the Purchase Contract Agent accompanied by an instruction a notice to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures Debt Securities or the appropriate Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture Debt Securities or the appropriate Applicable Ownership Interest in the applicable Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above above, from the Purchase Contract Agent, the Collateral Agent shall release the related Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the HoldersAgent.

Substitution for Treasury Securities and the Creation of Corporate Units. A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent the Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, in substitution for all, but not less than all, of the Treasury Securities comprising part that are components of the Treasury Unit in accordance with this Section 4.2 and Section 3.14 of the Purchase Contract Agreement; provided, however, that if the Applicable Ownership Interest in the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the first day of the Final Three‑Day Remarketing Period; and if the Treasury Portfolio has replaced the Debentures underlying the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, such Collateral Substitutions may only be made on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In accordance with Section 3.14 of the Purchase Contract Agreement, unless a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption has previously occurred, Holders of Treasury Units shall not be permitted to effect Collateral Substitutions during the period commencing on and including the Business Day prior to the first of the three sequential Remarketing Dates comprising Date in a Three‑Day Remarketing Period and ending on and including the Reset Effective Date relating to a Successful Remarketing during such Three‑Day Remarketing Period or, if none of the Remarketings no Remarketing during such Three‑Day Remarketing Period is successful, the Business Day following the last of the three sequential Remarketing Dates Date occurring during such Three‑Day Remarketing Period. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of 20 Treasury Units if Treasury Securities are being replaced by Applicable Ownership Interest in Debentures, or (ii) only in integral multiples of 80,000 160,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date) if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. For example, to create 20 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has not occurred and the Applicable Ownership Interests in Debentures remain components of Corporate Units), or 80,000 160,000 Corporate Units (if a Special Event Redemption or a Mandatory Redemption has occurred or the Treasury Portfolio has replaced the Applicable Ownership Interests in Debentures as components of Corporate Units as a result of a Successful Remarketing) (or such other number of Corporate Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall (a) if the Treasury Portfolio has not replaced the Applicable Ownership Interest in Debentures as a component components of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business DB 1/ 148045215.3 Day immediately preceding the first day of the Final Three‑Day Remarketing Period, deposit with the Collateral Agent $1,000 in aggregate principal amount of Debentures, which Debentures must have been purchased in the open market at the expense of the Holder of the Treasury Unit, unless otherwise owned by the Holder of the Treasury Unit; or (b) if the Treasury Portfolio has replaced the Applicable Ownership Interest in Debentures as a component of Corporate Units as a result of a Successful Remarketing or a Special Event Redemption or a Mandatory Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each 80,000 160,000 Corporate Units being created by the Holder, and having an aggregate principal amount of $4,000,0008,000,000, which Applicable Ownership Interest in the Treasury Portfolio must have been purchased in the open market at the expense of the Holder of Treasury Unit, unless otherwise owned by the Holder of Treasury Unit; and (c) in each case, transfer and surrender the related 20 Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, 80,000 160,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing Agent Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), to the Purchase Contract Agent accompanied by an instruction to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Applicable Ownership Interest in Debentures or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto. Upon receipt of the Debenture or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders.