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:
"""
be subject to a late payment charge calculated at an annual rate of three percent (3%) over the prime rate or successive prime rates (as posted in New York City) during delinquency. If the amount of such charge exceeds the maximum permitted by law, such charge shall be reduced to such maximum. (c) THI further agrees to pay Intellectual Property Prosecution and Costs Applications in Appendix A directly to Marv. 1. Costs. THI shall reimburse Marv for all IP Costs incurred on behalf of THI, as well as pre-paid IP Costs incurred prior to the Effective Date of this Agreement, including the costs of provisional and non-provisional applications that are filed to preserve Intellectual Property. Reimbursement for pre-paid IP Costs shall be in accordance with 2 (b) 2 above. 2. Extension of Application. By written notice to Marv and at least ninety (90) days before the non-extendable due date for the filing of a national phase application of an Application, THI shall elect those countries or authorities in which it desires to file a patent application based on the Application. Intellectual Property rights in an unelected country shall revert to Marv. 3. Notice to Licensee. Before payment of any IP Cost, Marv shall notify THI for a time period being the lesser of (i) at least sixty (60) days before the IP Cost is due or (ii) as soon as is practicable after receiving knowledge of the IP Cost. The notice will identify (i) the Application or Patent, (ii) the country, (iii) the reason for the IP Cost, and (iv) the Due Date for payment. THI shall then affirm or deny payment. Affirmation of payment must be received by Marv within fourteen (14) days of the mailing date of the notice or the THI shall be deemed to have denied payment. a. If THI affirms a payment, THI shall reimburse Marv for all IP Costs arising from the payment and shall then retain its license for the Application or Patent in that country. b. If THI denies payment, THI shall have no obligation to pay IP Costs associated with the Application or Patent in that country, but the license and all associated rights for that Application or Patent shall revert to Marv. 4. Reimbursement by Licensee. THI shall prepay Marv for any affirmed IP Cost before payment is to be made by Marv. Marv shall have no duty to pay an IP Cost, whether affirmed or not affirmed, for which Marv does not receive prepayment. If THI does not pay Marv by the Due Date, the Application or Patent shall revert to Marv as if THI had denied payment under section 2(c)3. 5. Reversion of License. If a reversion occurs under this Article, the license in that country in which reversion has occurred will be terminated, and THI shall have no further right in the Application or Patent for that country. The right shall revert to Marv who will then have the right to pursue protection for the reverted Application or Patent. Marv has no further duty to THI for a reverted Application or Patent. 6. Applications. Defines as all applications of the United States and foreign countries, including Patent Cooperation Treaty applications that claim priority to the Applications listed in Appendix A, including any non-provisional applications, continuations, continuations-in-part, divisions, reissues, re-examinations or extensions thereof; and all applications including those applications filed in the United States or applications filed under the Patent Cooperation Treaty on subject matter directly related to the Applications in Appendix A whether or not priority to said applications was claimed. (d) Royalty Payments. 1. Royalty payments are payable from THI to Marv Enterprises, LLC and will be in the amount of 5% of the Fair Market Value of: a. Licensed Product that is sold, leased or put into use by the THI or any Related Companies in the preceding calendar quarter; and b. any service performed by THI or any Related Companies that directly or indirectly uses Licensed Product. 3 2. This License does not include a minimum annual royalty payable by THI to Marv. 3. Fair Market Value" means, with respect to any Licensed Product sold, leased or put into use, the Selling Price actually obtained in an arm's length transaction for a product comprising a Licensed Product in the form in which the product is sold, whether or not assembled and without excluding any components or subassemblies thereof which are included in such Selling Price. "Selling price" shall exclude: usual trade discounts actually allowed
"""

Extract the exact clause related to "Termination For Convenience" from the excerpt above.

assistant: Not found.