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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through the following Cardholder Web sites: www.personaselect.com Persona(R) Select www.encompass-select.com Encompass(R) Select www.rewardearner.com/fillitup Fill It Up(R) www.rewardearner.com/bmg Be My Guest(R) iii. Merchant Management - includes the management of the authorization network, merchant settlement and dispute handling, and iv. AEIS will provide reasonable assistance to Schoolpop in managing the Program as needed and requested by Schoolpop. Additional charges may apply. v. AEIS and Schoolpop shall mutually agree upon a Client and/or Cardholder appeasement process and the respective financial responsibility. b. AEIS reserves the right to change program servicing from time to time. 11. REPRESENTATIONS AND WARRANTIES a. Schoolpop and AEIS each represents and warrants that participation in the Program shall at all times conform to the highest standards of business ethics and practices and at no time will they permit any act to be done by their employees or representatives that will damage the name, reputation or goodwill of the other party or its affiliated companies. b. Schoolpop and AEIS each further represents and warrants that its participation in the Program is and will remain during the term of this Agreement in compliance with all laws, rules and regulations applicable to it. c. Schoolpop and AEIS each further represents and warrants that they are authorized to enter into this Agreement and that this Agreement does not violate any other agreement to which it is a party. 12. CONFIDENTIALITY a. The terms, procedures, any applicable criteria for success and results of this Agreement and all information furnished by and between the parties in connection with this Agreement shall be confidential and shall not be disclosed by either party without the express written consent of the other party; provided that Schoolpop shall have the right to disclose such information as may be required to comply with applicable SEC regulations. b. Both parties acknowledge that they may have access to or receive confidential information, data, and materials about the other party, their Clients and Cardholders, and their entities, including, without limitation, marketing philosophies and objectives, pricing information, business materials and data, processes, customer lists, product information, financial data, competitive advantages and disadvantages, and other confidential information received ("Confidential Information"), and that disclosure or misuses of such Confidential Information, would be irreparably damaging to the other party. Accordingly, both parties agree to receive and hold in confidence all Confidential Information considered proprietary or confidential by the other party, and &sbsp; agree not to disclose or use such information in any manner except for uses contemplated by this Agreement unless permitted in writing in advance by the other party (except for information disclosed to Cardholders in accordance with the Cardholder Agreement). Both parties also agree to bind their employees, and subcontractors to compliance with this paragraph and to take all other reasonable action to ensure protection of the Confidential Information. c. Such Confidential Information is subject to the terms and conditions of this Agreement, if (a) such Confidential Information is either Party's marketing philosophies and objectives, financial and pricing information, Client lists, business processes or competitive advantages and disadvantages; (b) such Confidential Information is disclosed verbally and is verbally identified as proprietary or confidential at the time of disclosure, and there exists a written record that such Confidential Information was disclosed and identified verbally as proprietary or confidential; or (c) such Confidential Information is in written, graphic or electronic form when disclosed and the media that contains such Confidential Information is clearly marked "confidential" or "proprietary", or something substantially similar. Notwithstanding the foregoing, Confidential Information shall not include (d) information that is publicly known, already known by, or in the possession of the non-disclosing party, or (e) is independently developed by the non-disclosing party without use or reference to the other party's Confidential Information, or (f) is rightly 9 obtained by the non-disclosing party from a source other than the disclosing party without such restrictions. d. Each party agrees that during the term of this Agreement and thereafter (a) it will use Confidential Information belonging to the other party solely for purposes outlined in this Agreement, (subject to the terms and conditions thereof), (b) it will not disclose Confidential Information belonging to the other Party to any third party other than the receiving Party's employees, affiliates, agents, permitted vendors, subcontractors and/or professional advisors on a need-to-know basis who are advised of the confidential nature of the Confidential Information and under a similar confidentiality agreement, and (c) each Party will treat the Confidential Information of the other Party with the same care that the receiving party normally
"""

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

assistant: Not found.