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:
"""
to wear such uniform during such event. D. The NFLA shall list the Company as a sponsor on all of its promotional materials, websites or other electronic media. The NFLA shall allow the Company to participate in local and national NFLA functions (i.e. Super Bowl Parties, Award Ceremonies, Banquets, etc…) at the Company's own expense. E. The NFLA shall promote Company and Company's products to NFLA database and audience by deliverables listed in Exhibit B. 5 Source: GRIDIRON BIONUTRIENTS, INC., 8-K, 12/6/2017 SECTION SEVEN. PAYMENTS All payments shall be made by wire transfer drawn to the account of NFLA-NC no later than ten (10) business days after the end of each quarter as follows: $0.05 per Unit as described herein of Company's Products sold in the Contract Territory payable to NFLA-NC. Donated amounts will be allocated and dispersed to the NFLA-NC beginning on the first full quarter (three month period) of the Agreement and continue on a quarterly basis thereafter for the term of this Agreement. Past due payments under this Agreement shall bear interest at the rate of: (a) 1% per month; or (b) the maximum interest rate permissible under law, whichever is less. All amounts in this section are in United States dollars. SECTION EIGHT. AUTHORIZED AGENT Each party shall designate its authorized agent for all purposes under this Agreement. All notices or submissions to be made or delivered by the Company, the NFLA or the NFLA-NC pursuant to this Agreement shall be delivered to the agent's address below, free of all charges (for example, shipping charges and customs charges). If any such shipping charges are paid by another party or by its authorized agent, the corresponding party agrees to make prompt reimbursement. All notices or submissions to be made or delivered to Company pursuant to this Agreement shall be delivered to: The Company Food For Athletes/Gridiron BioNutrients™ Attention: Darren Long 1147 N Roseburg Ct STE A, Visalia CA, 93291 NFLA-NC National Football League Alumni - Northern California Chapter Attention: Russell Isaacson - Comptroller 1311 Madison Avenue Redwood CA 94061 NFLA National Football League Alumni, Inc. Attention: Elvis Gooden 8000 Midlantic Drive, 130 S. Mount Laurel, NJ. 08054 6 Source: GRIDIRON BIONUTRIENTS, INC., 8-K, 12/6/2017 SECTION NINE. DEFAULT A. If either party at any time during the Contract Period shall: (i) fail to make any payment of any sum of money specified in this Agreement to be made; or (ii) fail to observe or perform any of the covenants, agreements or obligations under this Agreement (other than the payment of money), the non-defaulting party may terminate this Agreement as follows: As to a default under clause (i) above, if such payment is not made within 10 business days after the defaulting party shall have received written notice of such failure to make payment; or, as to a default under clause (ii) above, if such other default is not cured within 30 days after the defaulting party shall have received written notice specifying in reasonable detail the nature of such default. In order to be a sufficient notice under this section, any such written notice shall specify in detail each item of default and shall specify the provision of this Agreement which applies to each item of default, and shall specify in detail the action the defaulting party is required to take in order to cure each item of default. The termination rights set forth in this section shall not constitute the exclusive remedy of the non-defaulting party under this Agreement, however, and if default is made by either party under this Agreement, the other party may resort to such other remedies as such party would have been entitled to if this section had been omitted from this Agreement, subject to the terms of this Agreement. Termination under the provisions of this section shall be without prejudice to any rights or claims which the terminating party may otherwise have against the defaulting party, and if Company is the defaulting party, Company shall be responsible for any and all payments due under the terms of this Agreement in addition to other liabilities set forth above. B. If Company shall become bankrupt or insolvent, or if Company's business shall be placed in the hands of a receiver, assignee or trustee, whether by voluntary act of Company or otherwise, the Contract Period, at the election of NFLA, shall immediately terminate. SECTION TEN. USE OF THE NFLA/NFLA-NC's IDENTIFICATION AFTER TERMINATION A. Except as provided in paragraph B of this SECTION TEN, from and
"""

Extract the exact clause related to "Covenant Not To Sue" from the excerpt above.