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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4.7 Responsibility for Non-Complying Product. Manufacturer shall not release any Product for Delivery to Customer that does not conform to the covenants set forth in Section 5.2(e) (such non-conforming Product, "Non-Complying Product"), without the prior written approval of Customer. Manufacturer shall quarantine all such Non-Complying Products and shall promptly submit to Customer a report detailing the nature of such non-compliance and Manufacturer's recommended disposition, including the investigation and testing done. Manufacturer shall also provide any additional information regarding such Non-Complying Product as may reasonably be requested by Customer. Customer shall not be required to pay for any Non-Complying Product or for the destruction or other disposition thereof (unless an investigation determines that the root cause for such Product being Non-Complying Product is Non-Complying Buy-Sell Materials or Non-Complying Customer-Supplied Material). 4.8 Rejection of Non-Complying Product. (a) Customer's Ability to Reject. Customer may reject any Non-Complying Product or Product that is not delivered to Customer in accordance with this Agreement by providing written notice of such rejection to Manufacturer within seventy-five (75) days following Customer's receipt of any Delivery of Product hereunder; provided, however, that Customer may, until the expiry date for a Product, provide notice of rejection of any Delivery of such Product having (i) latent defects, (ii) any defects that are not reasonably discoverable by Customer through standard inspection and testing of Products or (iii) defects caused by the breach by Manufacturer of any of its representations or warranties under this Agreement (collectively, "Latent Defects"); provided, further, that, and notwithstanding the foregoing, Customer shall notify Manufacturer within sixty (60) days after Customer first becomes aware of any such Latent Defect. (b) Manufacturer's Ability to Reject. Manufacturer may reject any Non-Complying Product by (i) providing Customer with no less than sixty (60) days' prior written notice of Manufacturer's intention to reject such Non-Complying Product along with the documentation set forth in Section 4.7, (ii) meeting with Customer at Customer's request to discuss the basis for the proposed rejection of the subject Non-Complying Product, and (iii) providing Customer with notice of rejection in the event that Manufacturer rejects the subject Non- Complying Product at the end of such sixty (60) day period (or such other time frame as the parties may agree upon). (c) Manufacturer's Obligation; Replacement. Manufacturer shall respond to any rejection, defect notice or any quality-related complaint from Customer pursuant to Section 4.8(a) in a timely manner or such other time frame as may be specified in the applicable Quality Agreement. Manufacturer shall conduct an analysis of the causes of any such complaint, shall report to Customer on any corrective action taken and shall reasonably consider -38- Source: UPJOHN INC, 10-12G, 1/21/2020 Customer's suggestions related to such corrective action or other quality-related matters. Customer shall promptly return any Product (or portions thereof) rejected pursuant to Section 4.8(a) to Manufacturer at Manufacturer's expense. With respect to any Non- Complying Product rejected by Customer, in addition to any other rights or remedies of Customer hereunder, Customer may elect, in its sole discretion, upon written notice to Manufacturer to either (i) have Manufacturer replace any Non-Complying Product as soon as practicable at no additional charge to Customer; provided that (A) the Manufacturer shall replace such Non-Complying Product within a period of ninety (90) days beginning on the date that the Manufacturer confirms or a Third-Party laboratory determines that the subject Product is a Non-Complying Product, and (B) if Manufacturer fails to replace such Non-Complying Product within such ninety (90) day period, then a Triggering Event shall be deemed to have occurred and the provisions of Section 2.5 shall apply; or (ii) be reimbursed for the Price of the Non-Complying Product actually paid. Manufacturer shall reimburse Customer for the cost of all Customer-Supplied Materials used to manufacture any Non-Complying Product (unless such Product is a Non-Complying Product due to any Non-Complying Customer-Supplied Material, as applicable). (d) Independent Testing. If the Parties are unable to agree on whether Product rejected by Customer is Non-Complying Product, then Manufacturer may hire an independent Third-Party laboratory, subject to Customer's prior written approval of such laboratory, not to be unreasonably withheld, conditioned or delayed, to perform testing on such rejected Product in accordance with the Specifications, applicable Laws and the Quality Agreement, which Third Party laboratory shall promptly provide the results thereof to Customer and Manufacturer. Manufacturer must engage such Third-Party laboratory within the thirty (30) day period following Manufacturer's receipt of Customer's rejection notice. If Manufacturer fails to engage such Third-Party laboratory during such thirty (30) day period,
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Extract the exact clause related to "Warranty Duration" from the excerpt above.

assistant: Manufacturer may reject any Non-Complying Product by (i) providing Customer with no less than sixty (60) days' prior written notice of Manufacturer's intention to reject such Non-Complying Product along with the documentation set forth in Section 4.7, (ii) meeting with Customer at Customer's request to discuss the basis for the proposed rejection of the subject Non-Complying Product, and (iii) providing Customer with notice of rejection in the event that Manufacturer rejects the subject Non- Complying Product at the end of such sixty (60) day period (or such other time frame as the parties may agree upon).