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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a material adverse effect on the rights or obligations of LICENSEE under this Agreement; and (ii) is not aware of any claim or any basis for any claim that Licensed Technology, or LICENSEE's use of the Licensed Technology as contemplated herein, will infringe any patents, trade secrets of other intellectual property rights belonging to any third party. 8.3 Software Warranty. D2 warrants to LICENSEE that the media upon which the Licensed Technology is delivered to LICENSEE will be free from Defects in materials and workmanship, and that Licensed Technology shall meet and perform in accordance with D2's specifications on Exhibit A. D2 shall promptly correct any Software License D2 Technologies, Inc. and Maintenance Agreement August 4, 1997 CONFIDENTIAL 12 errors in the Licensed Technology, or failures of the Licensed Technology according to the terms of Article 6 of this Agreement. D2's warranty and error correction obligations with respect to any portion of the Licensed Technology shall extend for a period (the "Warranty period") of one year commencing on acceptance of such portion of the Licensed Technology by LICENSEE. 8.4 Disclaimer of Other Warranties. THE REPRESENTATIONS AND WARRANTIES EXPRESSLY SET FORTH IN THIS ARTICLE 8 ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE. D2 SPECIFICALLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH THE LICENSED TECHNOLOGY. 9. TERM AND TERMINATION. 9.1 Term. This Agreement shall become effective on the Effective Date and shall continue in effect until terminated in accordance with the provisions of this Article 9. 9.2 For Convenience. LICENSEE may terminate this Agreement upon ninety (90) days written notice. 9.3 Default. If either party defaults in the performance of any of its material obligations hereunder and if such default is not corrected within thirty (30) days after written notice thereof by the other party, then the nondefaulting party, at its option, may, in addition to any other remedies it may have, terminate this Agreement by giving written notice of termination to the defaulting party. 9.4 Survival. Articles 7.2, 7.3,7.4, 8, 9, 10, 11, 12, 13, 14 shall survive any termination or expiration of this Agreement. 10. INDEMNIFICATION 10.1 By D2. D2 agrees to indemnify and hold LICENSEE harmless against any cost, loss, liability, or expense (including attorney's fees) arising out of any breach of D2's warranties hereunder, or out of third party claims against LICENSEE alleging that the Licensed Technology, or LICENSEE's use or distribution of the Licensed Technology as set forth in this Agreement, infringes any third party's patent, trade secret, copyright of other intellectual property right in any country, provided that LICENSEE shall (i) notify D2 promptly in writing of such claims, and (ii) give D2 sole control of the defense or settlement of such claims. D2 shall not be liable for any claims to the extent that such claims arise out of the LICENSEE's unauthorized modifications of the Licensed Technology, and not out of the Licensed Technology as delivered by D2 to LICENSEE. If the Licensed Technology, or any part thereof, is Software License D2 Technologies, Inc. and Maintenance Agreement August 4, 1997 CONFIDENTIAL 13 adjudicatively determined to be, or in either party's reasonable opinion will be, the subject of any claim, suit or proceeding for infringement of any third party's patent, copyright or trade secret in any country, or if the distribution of use of the Licensed Technology is enjoined, then D2 may, at D2's sole option and expense, (i) obtain for LICENSEE and its distributors, resellers and customers the right to distribute or use the Licensed Technology under such third party patents, trade secrets, copyrights or other intellectual property rights, or (ii) replace the Licensed Technology with other software of equivalent or superior functionality, or (iii) suitably modify the Licensed Technology to avoid such infringement. In the event that D2 is unable to carry out the options set forth in (i), (ii) and (iii) of the proceeding sentence, at the option of Licensee D2 may terminate this Agreement and refund all amounts paid by LICENSEE to D2 hereunder; provided, that such termination shall have no effect on the rights of end users to use LICENSEE products, incorporating any Licensed Technology, which were acquired by such end users prior to such termination. 11. LIMITATION OF LIABILITY IN NO EVENT SHALL EITHER PARTY BE LIABLE TO THE OTHER PARTY FOR LOST PROFITS OR ANY CONSEQUENTIAL, SPECIAL, INCIDENTAL, OR INDIRECT DAMAGES OR SUCH OTHER PARTY, HOWEVER CAUSED AND
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Extract the exact clause related to "Expiration Date" from the excerpt above.

assistant: This Agreement shall become effective on the Effective Date and shall continue in effect until terminated in accordance with the provisions of this Article 9.