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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by declaratory judgment. 17.7 Notices. Notices under this Agreement must be in writing and must be delivered in person, by prepaid overnight commercial delivery service, or by prepaid overnight mail, registered or certified, with return-receipt requested. Notices to us must be sent to 7930 Jones Branch Drive, Suite 1100, McLean, VA 22102, ATTN: General Counsel. We will send notices to your address set forth in the Addendum. If you want to change the name or address for notice to you, you must do so in writing, signed by you or your duly authorized representative, designating a single address for notice, which may not be a P.O. Box, in compliance with this Subsection. Notice will be deemed effective on the earlier of: 1) receipt or first refusal of delivery; 2) one (1) day after posting if sent via overnight commercial delivery service or overnight United States Mail; or 3) three (3) days after placement in the United States mail if overnight delivery is not available to the notice address. 17.8 General Release. With the exception of claims related to representations contained in the franchise disclosure document for the Brand, you, on your own behalf and on behalf of, as applicable, your officers, directors, managers, employees, heirs, administrators, executors, agents and representatives and their respective successors and assigns hereby release, remise, acquit and forever discharge us and the Entities and our and their respective officers, directors, employees, managers, agents, representatives and their respective successors and assigns from any and all actions, claims, causes of action, suits, rights, debts, liabilities, accounts, agreements, covenants, contracts, promises, warranties, judgments, executions, demands, damages, costs and expenses, whether known or unknown at this time, of any kind or nature, absolute or contingent, existing at law or in equity, on account of any matter, cause or thing whatsoever that has happened, developed or occurred relating to this Agreement or the relationship between you and us. This release will survive the termination of this Agreement. 17.9 Remedies Cumulative. The remedies provided in this Agreement are cumulative. These remedies are not exclusive of any other remedies that you or we may be entitled to in case of any breach or threatened breach of the terms and provisions of this Agreement. 17.10 Economic Conditions Not a Defense. Neither general economic downturn or conditions nor your own financial inability to perform the terms of this Agreement will be a defense to an action by us or one of the Entities for your breach of this Agreement. 17.11 Representations and Warranties. You warrant, represent and agree that all statements in your franchise application in anticipation of the execution of this Agreement, and all other documents and information submitted to us by you or on your behalf are true, correct and complete as of the date of this Agreement. You further represent and warrant to us that: 17.11.1 you have independently investigated the risks of operating the Hotel under the Brand, including current and potential market conditions and competitive factors and risks, and have made an independent evaluation of all such matters and reviewed our franchise disclosure document, if applicable; 17.11.2 neither we nor our representatives have made any promises, representations or agreements other than those provided in the Agreement or in our franchise disclosure document provided to you in connection with the offer of this Agreement, if applicable, and you acknowledge that you are not relying on any promises, representations or agreements about us or the franchise not expressly contained in this Agreement in making your decision to sign this Agreement; 28 17.11.3 you have the full legal power authority and legal right to enter into this Agreement; 17.11.4 this Agreement constitutes a legal, valid and binding obligation and your entry into, performance and observation of this Agreement will not constitute a breach or default of any agreement to which you are a party or of any Law; 17.11.5 if you are a corporation, limited liability company, or other entity, you are, and throughout the Term will be, duly formed and validly existing, in good standing in the state in which you are organized, and are and will be authorized to do business in the state in which the Hotel is located; and 17.11.6 no Equity Interest has been issued, converted to, or is held as, bearer shares or any other form of ownership, for which there is no traceable record of the identity of the legal and beneficial owner of such Equity interest. You hereby indemnify and hold us harmless from any
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Extract the exact clause related to "Covenant Not To Sue" from the excerpt above.

assistant: With the exception of claims related to representations contained in the franchise disclosure document for the Brand, you, on your own behalf and on behalf of, as applicable, your officers, directors, managers, employees, heirs, administrators, executors, agents and representatives and their respective successors and assigns hereby release, remise, acquit and forever discharge us and the Entities and our and their respective officers, directors, employees, managers, agents, representatives and their respective successors and assigns from any and all actions, claims, causes of action, suits, rights, debts, liabilities, accounts, agreements, covenants, contracts, promises, warranties, judgments, executions, demands, damages, costs and expenses, whether known or unknown at this time, of any kind or nature, absolute or contingent, existing at law or in equity, on account of any matter, cause or thing whatsoever that has happened, developed or occurred relating to this Agreement or the relationship between you and us.