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:
"""
power, legal capacity and authority to enter into this Agreement on behalf of KI, to carry out its terms, and to grant Diplomat the rights, licenses and privileges granted in this Agreement. (b) Merger. This Agreement supersedes any and all prior written or oral agreements between the parties. (c) Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of California without regard to conflict of law principles. (d) Attorneys' Fees. The prevailing party in any proceeding brought to enforce any provision of this Agreement shall be entitled to recover the reasonable fees and costs of its counsel, plus all other costs of such proceeding. (e) Notices. All notices and statements to be given, payments to be made and materials to be submitted under this Agreement shall be given, made and submitted via certified or registered mail, postage prepaid, return 12 receipt requested, at the addresses of the parties, as set forth above, unless notification of a change of address is given in writing, and the date of mailing shall be deemed the date the notice or statement is given. IN WITNESS WHEREOF, this Agreement has been executed as of the date first set forth above. /s/ Kathy Ireland --------------------------------- KATHY IRELAND, Individually KATHY IRELAND, INC. By /s/ Kathy Ireland --------------------------------- KATHY IRELAND, President THE STERLING/WINTERS CO. By /s/ Jason Winters --------------------------------- JASON WINTERS DIPLOMAT AMBASSADOR EYEWEAR GROUP By /s/ Barry Budilov --------------------------------- BARRY BUDILOV, President 13 ADDENDUM TO ENDORSEMENT AGREEMENT This addendum to the Endorsement Agreement between Kathy Ireland, Inc., Diplomat Ambassador Eyewear Group, and The Sterling/Winters Company entered into as of August 24, 1995 now includes the following provision: Diplomat Ambassador Eyewear Group agrees to comply with the laws and regulations of any state or territory in which they manufacture or have sub-contracted any Kathy Ireland product, especially pertaining to labor and safety issues. Diplomat Ambassador Eyewear Group agrees to comply with any reasonable requests from Kathy Ireland, Inc. concerning labor and safety resolutions. DIPLOMAT AMBASSADOR EYEWEAR GROUP 3/4/97 By /s/ Barry Budilov - ------- --------------------------------- Dated BARRY BUDILOV, President KATHY IRELAND, INC. 3/18/97 By /s/ Kathy M Ireland - ------- --------------------------------- Dated KATHY IRELAND, President THE STERLING/WINTERS CO. 3/21/97 By /s/ Jason Winters - ------- --------------------------------- Dated JASON WINTERS
"""

Extract the exact clause related to "Warranty Duration" from the excerpt above.