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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the Customer Components. Customer hereby grants to IBM, its Affiliates and Subcontractors all rights and licenses to, or agrees to promptly obtain and keep in effect Required Consents for all Customer Components, necessary for IBM to perform all of its obligations as set forth in this Agreement. Upon request, Customer will provide to IBM evidence of any such rights, licenses, or Required Consents. IBM will be relieved of its obligations to the extent that they are affected by Customer's failure to promptly obtain and provide to IBM any such rights, licenses, or Required Consents. IBM will adhere to reasonable terms and conditions pertaining to Customer Components as notified in writing to IBM. IBM agrees not to remove or alter any copyright or other proprietary notice on or in any Customer Component without Customer's consent. Capacity Planning Customer acknowledges it is its responsibility to determine whether the Services, e-business Hosting Environment, Customer Components and their combination will meet Customer's capacity, performance, or scalability needs. Customer is responsible for planning for and requesting changes to the e-business Hosting Environment, including any additional capacity required to support anticipated peaks in demand that may significantly increase web site hits, transaction volumes, or otherwise increase system resource utilization. Content Customer is solely responsible for: all Content including, without limitation, its selection, creation, encryption, transmission, transfer, design, licensing, installation, accuracy, maintenance, testing, backup and support; all copyright, patent and trademark clearances in all applicable jurisdictions and usage agreements for any and all Content; the selection and implementation of controls on the access and use of Content; and the selection, management, separate storage of keys, and use of any public and private keys and digital certificates it may use with the Services. 12.0 Other License and Rights License for Base Components IBM (or its Affiliates or subcontractors) retains all right, title, and interest in Base Components. IBM grants Customer a nonexclusive, nontransferable, revocable license to access and use the Base Components solely in connection with the Services as provided under this Agreement. Customer agrees not to download or otherwise copy, reverse assemble, reverse compile, decompile, or otherwise translate the software portions of the Base Components, other than to make one copy for backup purposes. If IBM provides as a Base Component a Microsoft Corporation product, the terms and conditions of the Microsoft Customer License Terms will also apply for such products. Such Terms are located on the Internet at http://www.ibm.com/services/e-business/hosting/microsoftlicense.html. Customer agrees not to remove or alter any copyright or other proprietary notice on or in any Base Component without IBM's consent. Page 7 of 36 No Sale or Lease of Goods Source: QUANTUM GROUP INC /FL, 8-K, 1/20/2009 No Sale or Lease of Goods As between Customer and IBM, IBM retains all right, title and interest in the Base Components. No goods are sold or leased by IBM under this Agreement. If Customer desires to purchase or lease goods from IBM, such purchase or lease will be governed by a separate mutually acceptable written agreement between Customer and IBM or an IBM Affiliate. No Lease of Real Property This Agreement is a services agreement and not a lease of any real property. 13.0 Changes Service Description IBM, in its reasonable discretion, may change the terms and conditions of Attachment A upon at least ninety (90) days prior notice to Customer if such change was the result of: law, regulation, or similar governmental action; a ruling by a court of competent jurisdiction; or changes in the method of service delivery that affect similar IBM e-business hosting customers. Changes as a result of a, b, or c above will be effective on the date IBM specifies in the notice. Acceptable Use Policy IBM, in its reasonable discretion, may modify the Acceptable Use Policy upon thirty (30) days' prior notice to Customer. If such modification has a material adverse effect on the Customer's use of the Services and provided such modification is not required by law, regulation, or similar governmental action, or a ruling by a court of competent jurisdiction, Customer's sole remedy is to terminate this Agreement without the payment of termination charges provided Customer gives IBM notice of its intent to terminate within ninety (90) days of the effective date of such modification. Project Change Control Procedure This Agreement may be amended only by a writing signed by authorized representatives of both parties. Requests for such amendment ("Project Change Request" or "PCR") should be submitted in writing by the requesting party. The PCR should reference this Agreement,
"""

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

assistant: Not found.