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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quality of the original Provided Elements and complying fully with all the representations and warranties set forth in this Agreement and all Specifications; provided further that if Vendor is unable in this way to provide such modified or replacement non-infringing Provided Elements, then AT&T shall have the right, at its option and without prejudice to any other rights or remedies that AT&T has in contract, law or equity: (1) to exercise any of the Termination Remedies set forth in the Build Addendum and to terminate AT&T's obligations under this Agreement with respect to the impacted Cell Sites and receive a reduction in the Maintenance Fees with respect to such Cell Site(s), and/or (2) to require Vendor, as applicable, to remove, accept return of, or discontinue the provision of the Provided Elements, to refund to AT&T the purchase price thereof or other monies paid therefor (subject, in the case of Provided Elements other than services, to reduction based on the amount of depreciation or amortization over the useful life of the Provided Elements at issue), and to reimburse AT&T for any and all reasonable out-of- pocket expenses of removing, returning or discontinuing such Provided Elements. (d) Elimination of Charges. After AT&T ceases, as a result of actual or claimed infringement or misappropriation, to exercise the rights granted under this Agreement with respect to the Provided Elements, AT&T has no obligation to pay Vendor any Structured Payments or Maintenance Fees that would otherwise be due under this Agreement for such rights. (e) Exceptions. Vendor shall have no liability or obligation to any of the AT&T Indemnified Parties for that portion of a Covered Loss which is based on (and only to the extent such portion is based on): (i) use of the Provided Elements by the AT&T Indemnified Parties in a manner that constitutes a material breach of this Agreement; or (ii) an unauthorized modification of the Provided Elements by an AT&T Indemnified Party; or (iii) Vendor's conformance to the AT&T Indemnified Party's written specifications, unless any one or more of the following is true: 1. there was a technically feasible non-infringing means of complying with those specifications, unless Vendor can show that, at the time of such compliance, such non- infringing means would have been cost-prohibitive (whether on an individual Cell Site basis, or across multiple Cell Sites as set forth in the Build Addendum); or 2. the relevant specifications are designed to bring the Provided Elements into compliance with, or have the Provided Elements conform to, an industry standard, which standard is promulgated by a generally recognized industry standards-setting body and which standard is not required for compliance with an applicable law, ordinance, regulation, Proprietary and Confidential This Agreement and information contained therein is not for use or disclosure outside of AT&T, its Affiliates, and third party representatives, and Vendor except under written agreement by the contracting parties. 24 Source: ATN INTERNATIONAL, INC., 10-Q, 11/8/2019 or building code governing the manner in which Cell Sites may lawfully be constructed; or 3. products, services, or other items that substantially meet such written specifications, and that in other respects are substantially similar to the Provided Elements are typically provided by or on behalf of Vendor to third parties in connection with Services substantially similar to those provided herein; or 4. the relevant specifications for the Provided Elements are of Vendor's (or one or more of its sub- suppliers') origin, design, or selection. (f) OTHER LIMITATIONS OF LIABILITY NOT APPLICABLE. NOTWITHSTANDING ANY OTHER PROVISION IN THIS AGREEMENT TO THE CONTRARY (AND WHETHER OR NOT SUCH A PROVISION CONTAINS LANGUAGE TO THE EFFECT THAT THE PROVISION TAKES PRECEDENCE OVER OTHER PROVISIONS CONTRARY TO IT), WHETHER EXPRESS OR IMPLIED, NONE OF THE LIMITATIONS OF LIABILITY (INCLUDING ANY LIMITATIONS REGARDING TYPES OF OR AMOUNTS OF DAMAGES OR LIABILITIES) CONTAINED ANYWHERE IN THIS AGREEMENT WILL APPLY TO VENDOR'S OBLIGATIONS UNDER THIS SECTION. 3.18 Insurance (a) With respect to Vendor's performance under this Agreement, and in addition to Vendor's obligation to indemnify, Vendor shall at its sole cost and expense: (i) maintain the insurance coverages and limits required by this Section and any additional insurance and/or bonds required by Laws: 1. at all times during the term of this Agreement and until completion of all Work associated with this Agreement, whichever is later; and 2. with respect to any coverage maintained in a "claims-made" policy, for two (2) years following the term of this Agreement or completion of all Work associated with this Agreement, whichever is later. If
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Extract the exact clause related to "Most Favored Nation" from the excerpt above.

assistant: Not found.