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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each subcontractor to the same extent as if Provider had performed the Services itself (subject to the limitations set forth in this Agreement) and agrees to pay the fees and expenses of any such subcontractor; (c) Provider shall remain ultimately responsible for ensuring that the Services are provided and any such subcontractor performs any such obligations in accordance with the terms of this Agreement, and (d) the obligations with respect to the nature, quality and standards of care set forth in Section 1.2 are satisfied with respect to any Service provided by any subcontractor. (f) Provider shall at all times during the term of this Agreement maintain, or cause to be maintained, the computer software and computer hardware that is used in connection with the Services with substantially the same degree of care, skill and diligence with which Provider maintains, or causes to be maintained, as of the Effective Date, such computer software and computer hardware for itself, consistent with past practices, as of the Effective Date, including without limitation, with respect to type, quality and timeliness of such maintenance. 1.3 Additional Services. Nothing in this Agreement shall be construed to prevent the Recipient from itself performing or from acquiring services from other providers that are similar to or identical to the Services. 1.4 Intellectual Property. (a) Recipient shall own, and Provider hereby irrevocably assigns to the Recipient, all rights, title, and interest in any invention, technique, process, device, discovery, improvement, or know-how, whether patentable or not and all other proprietary rights, industrial rights and any other similar rights, in each case on a worldwide basis, and all copies and tangible embodiments thereof, or any part thereof, in whatever form or medium hereafter made or conceived solely or jointly by Provider while working for or on behalf of the Recipient, which relate to, is suggested by, or results from the Services. (b) At Recipient's request, Provider shall disclose any such invention, technique, process, device, discovery, improvement, or know-how promptly to Recipient. Provider shall, upon request of Recipient, promptly execute a specific assignment of title to Recipient, and do anything else reasonably necessary to enable Recipient to secure for itself, patent, trade secret, or any other proprietary rights. 2 (c) All writings or works of authorship, including, without limitation, program codes or documentation, produced or authored by Provider in the course of performing services for the Recipient, together with any associated copyrights, are works made for hire and the exclusive property of the Recipient. To the extent that any writings or works of authorship may not, by operation of law, be works made for hire, this Agreement shall constitute an irrevocable assignment by Provider to the Recipient of the ownership of and all rights of copyright in, such items, and the Recipient shall have the right to obtain and hold in its own name, rights of copyright, copyright registrations, and similar protections which may be available in the works. Provider shall give the Recipient or its designees all assistance reasonably required to perfect such rights. 2. Compensation. 2.1 Responsibility for Wages and Fees. For such time as any employees of Provider are providing the Services to Recipient under this Agreement, (a) such employees will remain employees of Provider and shall not be deemed to be employees of Recipient for any purpose, and (b) Provider shall be solely responsible for the payment and provision of all wages, bonuses and commissions, employee benefits, including severance and worker's compensation, and the withholding and payment of applicable taxes relating to such employment. 2.2 Terms of Payment and Related Matters. (a) As consideration for provision of the Services following the Effective Date, Recipient shall pay Provider an amount equal to Provider's actual cost of providing the Services plus a 10% service fee. In addition to such amount, in the event that Provider incurs reasonable and documented out-of-pocket expenses in the provision of any Service, including, without limitation, license fees and payments to third-party service providers or subcontractors (such included expenses, collectively, "Out-of-Pocket Costs"), Recipient shall reimburse Provider for all such Out-of-Pocket Costs. (b) (i) Provider shall provide Recipient with monthly invoices ("Invoices"), which shall set forth in reasonable detail, with such supporting documentation as Recipient may reasonably request with respect to Out-of-Pocket Costs, amounts payable under this Agreement, and (ii) payments pursuant to this Agreement shall be made within fifteen (15) days after the date of receipt of an Invoice by Recipient from Provider. (c) Provider shall allow the Recipient to use [ * * *
"""

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

assistant: Not found.