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 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 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 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 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 _____ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 in 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 Agents 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 Agents Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 _____ 8,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 DebenturesDebt Securities, or (ii) only in integral multiples of _____ 40,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment DateDebt Securities), the Treasury Unit Holder shall

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 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 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 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 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 _____ 400,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 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 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 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 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 _____ 4,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 in 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 Agents 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 Agents Agent following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 _____ 160,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 _____ 100,000 Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 _____ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 _____ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 _____ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment Date), the Treasury Unit Holder shall

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 that are components 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 components 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 components 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 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 DebenturesDebt Securities, or (ii) only in integral multiples of ______ Treasury Units (or such other number of Treasury Units as may be determined by the Remarketing 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 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 ______ 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 Agents following a Successful Remarketing if the Reset Effective Date is not a Payment DateDebt Securities), the Treasury Unit Holder shall