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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to perform the obligations of the parties to the agreement. The limitation of liability does not apply to claims arising through initial incapacity or in case of justifiable impossibility. (2) Any possible product liability claims are unaffected by the above limitations. Insofar as element 5 or the Software Publisher violates an essential obligation under the agreement, the obligation to pay restitution is limited to the damages that typically arise. (3) element 5 makes no guarantees in regard to the Software Publisher's software products offered via its Web site. Moreover, element 5 does not guarantee the Affiliate that the operation of its Web sites will be maintained without interruptions and without errors. Liability is expressly excluded for the consequences of such interruptions or errors. § 7 Agreement period / Cancellation The term of this Agreement will begin upon acceptance of Affiliate's Program application and will end when terminated by either party of this Agreement. This Agreement is entered into for an unlimited period of time. Either party may cancel this Agreement at any time, with or without supplying a reason, through written notification or by making suitable settings in the respective Control Panel. § 8 Termination of the agreement (1) When the agreement ends, all usage rights of the Affiliate and Software Publisher accorded by this agreement with regard to the provided logos or Web site contents expire. (2) Upon termination of the relationship under this agreement, the Affiliate is obligated to undertake all of the technical measures necessary to delete from its Web site all links that refer to the Web sites of element 5 or to the Software Publisher. The same applies upon termination of Affiliate Management for links of the Software Publisher that were established in connection with the participation in Affiliate Management on its Web site. (3) element 5 is authorized to retain final payment for a reasonable time, minimum for 30 days after the end of the respective quarter, to ensure that the correct amount is paid. Source: SOUTHERN STAR ENERGY INC., SB-2/A, 12/2/2005 Affiliate is only eligible to earn the Advertising Cost Compensation on sales of Software Publishers Products occurring during the term of this Agreement and fees earned up to the date termination will remain payable only if the related orders are not cancelled or returned. If the Advertising Cost Compensation was previously paid by element 5, it can be offset or invoiced to Affiliate at element 5's own discretion. § 9 Final provisions (1) Force majeure If a party is unable to fulfill its obligations under the agreement for reason of force majeure, it shall immediately inform the other party thereof and do everything in its power to resume normal operations as quickly as possible. In such case, the affected party shall not be deemed to be in breach of contract and cannot be held liable. (2) Provision for written form Additional agreements, changes or additions are valid only if element 5 has confirmed them in writing. The same applies to the warranting of properties. (3) Severability clause If any provision of this agreement is or becomes invalid, the validity of the remaining provisions shall not be affected. Insofar as a provision is invalid, the parties will agree on a new provision which comes as close as possible to the intent of the invalid provision and which is legally valid. (4) Applicable law and jurisdiction Even in case of agreements with foreign (non-German) Software Publishers and Affiliates, the law of the Federal Republic of Germany applies. The place of jurisdiction for all claims arising in connection with this business relationship is Cologne, Germany. Source: SOUTHERN STAR ENERGY INC., SB-2/A, 12/2/2005
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Extract the exact clause related to "Expiration Date" from the excerpt above.

assistant: The term of this Agreement will begin upon acceptance of Affiliate's Program application and will end when terminated by either party of this Agreement.