system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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render oversight, administrative and/or other services to other parties. It is understood that Trustees, officers and shareholders of the Trust are or may become interested in the Sponsor and/or any of its affiliates as directors, officers, employees or otherwise and that directors, officers and employees of the Sponsor and/or any of its affiliates are or may become similarly interested in the Trust and that the Sponsor and/or any of its affiliates may be or become interested in the Trust as a shareholder or otherwise. 6. Duration, Termination and Amendments of this Agreement. This Agreement shall become effective as of the day and year first above written and shall govern the relations between the parties hereto thereafter, unless terminated as set forth in this Section 6. This Agreement may not be altered or amended, except by an instrument in writing and executed by both parties. This Agreement may be terminated at any time, without the payment of any penalty, with respect to any series or the Trust, by the Board of Trustees of the Trust, or by the Sponsor, in each case on not less than 60 days' written notice to the other party. 7. Subcontracting by Domini. Domini may subcontract for the performance of some or all of Domini's obligations hereunder with any one or more persons; provided, however, that Domini shall not enter into any such subcontract unless the Trustees of the Trust shall have found the subcontracting party to be qualified to perform the obligations sought to be subcontracted; and provided, further, that, unless the Trust otherwise expressly agrees in writing, Domini shall be as fully responsible to the Trust for the acts and omissions of any subcontractor as it would be for its own acts or omissions. 8. Severability. If any provision of this Agreement shall become or shall be found to be invalid by a court decision, statute, rule or otherwise, the remainder of this Agreement shall not be affected thereby. 9. Notice. Any notices under this Agreement shall be in writing addressed and delivered personally, by telecopy or mailed postage-paid to the other party at such address as such other party may designate in accordance with this Section 9 for the receipt of such notice. Until further notice to the other party, it is agreed that the address of the Trust shall be 536 Broadway, 7th Floor, New York, New York 10012, and the address of Domini shall be 536 Broadway, 7th Floor, New York, New York 10012. 3 10. Miscellaneous. Each party agrees to perform such further actions and execute such further documents as are necessary to effectuate the purposes hereof. This Agreement shall be construed and enforced and interpreted in accordance with and governed by the laws of the Commonwealth of Massachusetts without reference to principles of conflicts of law. The captions in this Agreement are included for convenience only and in no way define or delimit any of the provisions hereof or otherwise affect their construction or effect. This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but such counterparts shall, together, constitute only one instrument. IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed and delivered in their names and on their behalf by the undersigned, thereunto duly authorized, all as of the day and year first above written. The undersigned Trustee of the Trust has executed this Agreement not individually but as a Trustee under the Trust's Declaration of Trust, dated October 6, 2004, as amended, and the obligations of this Agreement are not binding upon any of the Trustees or shareholders of the Trust individually but bind only the Trust estate. DOMINI ADVISOR TRUST By: /s/ Amy L. Domini --------------------------------- Amy L. Domini Trustee DOMINI SOCIAL INVESTMENTS LLC By: /s/ Amy L. Domini --------------------------------- Amy L. Domini Chief Executive Officer 4
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Extract the exact clause related to "Expiration Date" from the excerpt above.

assistant: This Agreement shall become effective as of the day and year first above written and shall govern the relations between the parties hereto thereafter, unless terminated as set forth in this Section 6.