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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distribute and sell the products covered by this Agreement, or any class or category thereof, will result in immediate damages to KI, Inc. (b) Diplomat also acknowledges that (except as otherwise provided herein) its failure to cease the manufacture, sale or distribution of the products covered by this Agreement, or any class or category thereof, at the termination or expiration of this Agreement will result in immediate and irremediable damage to KI, Inc. and to the rights of any subsequent licensee. Diplomat acknowledges and admits that there is no adequate remedy at law for such failure to cease manufacture, sale or distribution, and Diplomat agrees that in the event of such failure KI, Inc. shall be entitled to equitable relief by way of temporary and permanent injunctions and such other further relief as any court with jurisdiction may deem just and proper. (c) Resort to any remedies herein shall not be construed as a waiver of any other rights and remedies to which KI, Inc. is entitled under this Agreement or otherwise. 19. Excuse for Nonperformance. Diplomat shall be released from its obligations hereunder and this license shall terminate in the event that governmental regulations or other causes arising out of a state of national emergency, war, or causes beyond the control of the parties render performance impossible and one party so informs the other in writing of such causes and its desire to be so released. In such events, all royalties on sales theretofore made shall become immediately due and payable and no minimum royalties shall be repayable. 20. No Joint Venture. Nothing herein contained shall be construed to place the parties in the relationship of partners or joint venturers, and Diplomat shall have no power to obligate or bind KI, Inc. in any manner whatsoever. 21. No Assignment or Sublicense by Diplomat. This Agreement and all rights and duties hereunder are personal to Diplomat and shall not, without the written consent of KI, Inc., be assigned, mortgaged, sublicensed or otherwise encumbered by Diplomat or by operation of law. 11 KI, Inc. may assign its rights hereunder, but shall furnish written notice of such assignment to Diplomat. 22. No Waiver, Etc. None of the terms of this Agreement can be waived or modified except by an express Agreement in writing signed by both parties. There are no representations, promises, warranties, covenants or undertakings other than those contained in this Agreement, which represents the entire understanding of the parties. The failure of either party hereto to enforce, or the delay by either party in enforcing, any of its rights under this Agreement shall not be deemed a continuing waiver or a modification thereof and either party may, within the time provided by applicable law, commence appropriate legal proceedings to enforce any or all of such rights. No person, firm, group or corporation (whether included in KI's name or otherwise) other than Diplomat and KI, Inc. shall be deemed to have acquired any rights by reason of anything contained in this Agreement, except as provided in paragraphs 8 and 22. 23. Additional Endorsers. If, during the term of this Agreement, Diplomat should utilize the services of any other person to endorse its products, and the public image of such person is so inconsistent with that of KI as to risk damaging the good will of KI's name should KI, Inc. continue to do business with Diplomat, then KI, Inc. shall have the right to terminate this Agreement, subject to the remedial and other provisions of paragraph 14 of this Agreement. 24. Miscellaneous Provisions. (a) Authority. KI, Inc. has the full right, 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
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Extract the exact clause related to "Warranty Duration" from the excerpt above.