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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* *] efforts to resolve those problems, and shall keep Vapotherm informed of the status of those efforts. 7.4 Insurance. Medica shall at its cost obtain and maintain one or more insurance policies providing coverage of at least Euro [* * *] in the aggregate that cover Medica for fire, theft, fidelity, product liability, and any and all potential claims, suits, losses, expenses, or damages arising out of Medica's obligations under this Agreement. At Vapotherm's request to Medica from time to time, Medica shall furnish Vapotherm with certification of insurance evidencing that insurance and shall provide at least [* * *] Business Days prior written notice to Vapotherm of any cancellation of or decrease in the dollar amount of coverage provided by any such policy. Vapotherm shall have the right to maintain such insurance coverage on Vapotherm's behalf and at Vapotherm' s expense in the event of nonpayment of premiums or lapse of coverage. -7- [* * *] = Certain confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 406 of the Securities Act of 1933, as amended. (b) Vapotherm shall at its cost obtain and maintain product-liability insurance coverage in the amount of $[* * *] in relation to the Cartridge. At the request of Medica from time to time, Vapotherm shall famish Medica with certification of insurance evidencing that insurance and shall endeavour to provide at least [* * *] Business Days prior written notice to Medica of any cancellation of or decrease in the amount of coverage provided by any such policy. ARTICLE 8 INSPECITONS; RECORDS 8.1 Notification of Inquiries and Inspections. Medica shall notify Vapotherm within [* * *] Business Days of any written or oral inquiries, notifications, or inspection activity by any Governmental Authority in regard to Medica's manufacture of Cartridges. Medica shall permit up to two individuals selected by Vapotherm to attend any such inspections and shall provide Vapotherm with an accurate and reasonably complete description of any such inquiries, notifications, or inspections. Medica shall also furnish to Vapotherm (1) within [* * *] Business Days after receipt any report or correspondence issued by any Governmental Authority in connection with any such inquiries, notifications, or inspections, and (2) not later than [* * *] Business Days prior to the time Medica proposes to send it, a copy of any proposed response or explanation relating to any such inquiries, notifications, or inspections or any report or correspondence issued by any Governmental Authority in connection therewith (each, a "Proposed Response"), in each case redacted of trade secrets or other confidential or proprietary information of Medica that are unrelated to Medica's obligations under this Agreement or are unrelated to manufacture of Cartridges. Medica shall discuss with Vapotherm any Proposed Response and shall incorporate in that Proposed Response any reasonable comments provided by Vapotherm with respect to that Proposed Response. After filing a response with any Governmental Authority, Medica shall within [* * *] Business Days notify Vapotherm of any further contacts with that Governmental Authority with respect to that response. 8.2 Access to Medica Facilities and Records. Medica shall at Vapotherm's request give Vapotherm and any designee of Vapotherm reasonable access to Medica's facilities, procedures, and books and records, including Medica's protocols, standard operating procedures (SOPs), equipment specifications, and manufacturing records, for purposes of (1) observing manufacturing, operations and (2) auditing and inspecting Medica's facilities for compliance with applicable Laws and the terms of this Agreement. Vapotherm acknowledges that it and its designee may be permitted only to review, rather than obtain copies of, certain proprietary documents of Medica; Medica shall at Vapotherm's request provide Vapotherm with a copy of any other document that Vapotherm requests provided it is reasonable and applicable to the Cartridges or System. -8- [* * *] = Certain confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 406 of the Securities Act of 1933, as amended. 8.3 Records. Medica shall maintain all records necessary to evidence compliance with all applicable Laws and other requirements of applicable Governmental Authorities relating to the manufacture of the Cartridge. Medica shall also maintain records with respect to its costs, obligations, and performance under this Agreement. All such records shall be maintained for a period of not less than two years from the date of expiration of each Cartridge batch to which those records pertain, or such
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Extract the exact clause related to "Warranty Duration" from the excerpt above.