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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has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. Ono shall submit representative Marketing Materials, packaging and Product displaying the balimek or mektovi Product Trademarks and/or Array's trade name to Array for Array's review and approval (such approval shall not be unreasonably withheld or delayed) prior to the first use of such Marketing Materials, packaging or Product and prior to any subsequent change or addition to such Marketing Materials, packaging or Product; provided that if Array has not responded within ten (10) Business Days after the submission of such Marketing Materials, packaging or Product, Array's approval will be deemed to have been received. (b) Braftovi/Array. Without limiting Section 5.1(c) above, to the extent necessary to preserve Array's legal rights in the braftovi Product Trademark, Ono shall submit representative Marketing Materials, packaging and Product displaying the braftovi Product Trademark and/or Array's trade name to Array for Array's review and approval (such approval shall not be unreasonably withheld or delayed) prior to the first use of such Marketing Materials, packaging or Product and prior to any subsequent change or addition to such Marketing Materials, packaging or Product; provided that if Array has not responded within ten (10) Business Days after the submission of such Marketing Materials, packaging or Product, Array's approval will be deemed to have been received. (c) Other. With respect to all Product Trademarks other than balimek, mektovi or braftovi, Ono shall, and shall cause its respective Affiliates and Sublicensees to, comply with trademark style and usage standards approved by Array from time to time in connection with use of the Product Trademark(s). Ono shall, and shall cause its Affiliates to, at its own expense, submit representative Marketing Materials, packaging and Product displaying such Product Trademarks to Array for approval, which approval shall not be unreasonably withheld or delayed. In the event that Array reasonably objects to a proposed usage of the Product Trademark(s), it shall give written notice of such objection to Ono within sixty (60) days of receipt of such sample, specifying the way in which such usage of its Product Trademark(s) fails to meet the style, usage or quality standards for the Product or Product Trademark set forth in the first two sentences of this Section 12.4(c). If Ono or its Affiliate wishes to use such representative Marketing Materials, it must remedy the failure and submit further samples to Array's for approval. 12.5 Enforcement. (a) If either Party becomes aware of any actual or threatened infringement of any Product Trademark in the Ono Territory, such Party shall promptly notify the other Party in writing. Ono shall, at its own expense, initiate infringement proceedings or take other appropriate actions against an infringement of any Product Trademark in the Ono Territory and/or to defend any actions or proceedings involving the Product Trademarks in the Ono Territory, as the case may be. Ono shall have full control over the conduct of such action, including settlement thereof; 62 [ * ] = 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 24b-2 of the Securities Exchange Act of 1934, as amended. provided, however, Ono may not settle any such action, or make any admissions or assert any position in such action, in a manner that would materially adversely affect the Product Trademarks in the Ono Territory nor the rights or interests of Array, without the prior written consent of Array, which shall not be unreasonably withheld or delayed. In any event, the Ono shall keep Array informed of the status of its activities regarding any litigation in the Ono Territory involving a Product Trademark or settlement thereof and Array shall assist Ono and cooperate in any such litigation at Ono's reasonable request and expense. (b) Ono and Array shall recover their respective actual out-of-pocket expenses, or proportionate percentages thereof, associated with any litigation against infringers undertaken pursuant to this Section 12.5 or settlement thereof from any resulting recovery made by either Party. Any excess amount of such a recovery shall be [ * ] between Ono and Array, to the extent such recovery represents damages pertaining to the infringement of a Product Trademark in the Ono Territory. 12.6 Domain Names. Array shall own rights to, and shall be responsible, at its own expense, for registering and maintaining, the Internet domain names listed on Exhibit 12.6 (each of the foregoing,
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Extract the exact clause related to "Warranty Duration" from the excerpt above.

assistant: In the event that Array reasonably objects to a proposed usage of the Product Trademark(s), it shall give written notice of such objection to Ono within sixty (60) days of receipt of such sample, specifying the way in which such usage of its Product Trademark(s) fails to meet the style, usage or quality standards for the Product or Product Trademark set forth in the first two sentences of this Section 12.4(c).