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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Exhibit 10.28 ENDORSEMENT AGREEMENT This Endorsement Agreement ("Agreement") is made and entered into as of August 24, 1995, by and among the following parties: (a) Kathy Ireland, Inc. ("KI Inc."), furnishing the services of Kathy Ireland ("KI"), c/o The Sterling/Winters Co., 1900 Avenue of the Stars, Suite #1640, Los Angeles, California 90067; (b) The Sterling/Winters Co. ("SW"), 1900 Avenue of the Stars, Suite #1640, Los Angeles, California 90067; and (c) Diplomat Ambassador Eyewear Group ("Diplomat"), 1010 Arch Street, 3rd Floor, Philadelphia, Pennsylvania 19107. 1. Recitals. (a) Whereas Diplomat has created a new product line to be known as "Kathy Ireland Eyewear" ("KI Eyewear"); (b) Whereas Diplomat estimates on a non-binding basis that wholesale sales of KI Eyewear will reach $ during the first License Year, $ during the 2nd License Year, $ during the 3rd License Year, and $ during the 4th License Year (as those License Years are defined in subparagraph 3.(b) of this Agreement); (c) Whereas Diplomat desires to obtain the right to use the name, likeness and endorsement of KI in connection with the advertisement, promotion and sale of KI Eyewear; and (d) Whereas KI, Inc. has the authority to grant the right to use KI's name, likeness and endorsement to Diplomat in connection with the advertisement, promotion and sale of KI Eyewear and desires to do so; (e) NOW THEREFORE, for and in consideration of the mutual promises and conditions contained in this Agreement, the parties hereby agree as follows. 2. Grant of License. (a) Products. Upon the terms and conditions set forth in this Agreement, KI, Inc. hereby grants to Diplomat and Diplomat hereby accepts the right, license and privilege of utilizing KI's name and likeness solely upon and in connection with the manufacture, sale and distribution of the following products: (1) sunglasses, eyeglasses, readers and ophthalmic frames; 1 (2) optical cases, optical eye chains, eye pins, and lens cleaning kits sold only in optical retailers; and (3) such other optical accessories as the parties shall agree. (b) Territory. The license hereby granted extends worldwide. (c) Term. The term of the license hereby granted shall commence August 1, 1995 and continue until January 30, 2000, unless sooner terminated in the manner provided in the immediately succeeding sentence or as otherwise provided in this Agreement. Notwithstanding the foregoing, if the management of Kmart stores elects not to carry KI eyewear prior to the end of the first license year (January 30, 1997), then either party shall have the right to terminate this Agreement as of such date. 3. Terms of Payment. (a) Rate. Diplomat agrees to pay KI, Inc. as royalty a sum equal to % of the net wholesale volume of the products covered by this Agreement by Diplomat and its affiliated, associated, or subsidiary companies. The term "net wholesale volume" shall mean gross sales to all customers; less returns, trade discounts and cash discounts; but no deduction shall be made for other discounts or uncollectible accounts. No costs incurred in the manufacture, sale, distribution, or exploitation of the products covered by this Agreement shall be deducted from any royalty payable by Diplomat. (b) Minimum Royalties. Diplomat agrees to pay KI, Inc. the minimum royalties set forth below as a minimum guarantee against royalties to be paid to KI, Inc. under subparagraph 3.(a), above: (1) 1st License Year (8/1/95 - 1/30/97): $ (2) 2nd License Year (2/1/97 - 1/30/98): $ (3) 3rd License Year (2/1/98 - 1/30/99): $ (4) 4th License Year (2/1/99 - 1/30/2000): $ The minimum royalty for the 1st License Year shall be paid as follows: $ upon the signing of the Deal Memo dated August 24, 1995, the balance of $ to be paid in six (6) equal, consecutive, monthly installments of $ commencing with the month in which this Agreement is signed. No part of the minimum royalty for the first License Year shall in any event be repayable to Diplomat. The minimum royalty for the 2nd, 3rd and 4th License Years shall be made in four equal installments payable on February 1st, May 1st, August 1st and November 1st of each such License Year. Notwithstanding the foregoing, if royalties paid by Diplomat to KI, Inc. on net 2 wholesale volume for any particular License Year under subparagraph 3(a) of this Agreement should exceed the minimum royalties remaining to be paid for that same License Year under this subparagraph 3(b), then no further payments of minimum royalties for such License Year shall be required under this subparagraph 3(b). (c) Periodic
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Extract the exact clause related to "Warranty Duration" from the excerpt above.