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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Indemnifying Party's right to contest the Indemnified Party's right to indemnification and subject to refund in the event the Indemnifying Party is ultimately held not to be obligated to indemnify the Indemnified Party. 73 Source: REVOLUTION MEDICINES, INC., S-1, 1/17/2020 14.4 Mitigation of Loss. Each Indemnified Party shall take and shall procure that its Affiliates take all such reasonable steps and action as are reasonably necessary or as the Indemnifying Party may reasonably require in order to mitigate any Third Party Claims (or potential losses or damages) under this Article XIV. Nothing in this Agreement shall or shall be deemed to relieve any Party of any common law or other duty to mitigate any losses incurred by it. 14.5 Limitation of Liability. NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY SPECIAL, CONSEQUENTIAL, INCIDENTAL, PUNITIVE, OR INDIRECT DAMAGES OR LOST PROFITS ARISING FROM OR RELATING TO ANY BREACH OF THIS AGREEMENT, REGARDLESS OF ANY NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. NOTWITHSTANDING THE FOREGOING, NOTHING IN THIS SECTION 14.5 IS INTENDED TO OR SHALL LIMIT OR RESTRICT THE INDEMNIFICATION RIGHTS OR OBLIGATIONS OF ANY PARTY UNDER SECTION 14.1 OR SECTION 14.2, OR DAMAGES AVAILABLE FOR A PARTY'S BREACH OF ITS OBLIGATIONS RELATING TO CONFIDENTIALITY UNDER ARTICLE XI OR INTELLECTUAL PROPERTY UNDER ARTICLE X. 14.6 Insurance. Each Party shall procure and maintain insurance, including product liability insurance, with respect to its activities hereunder and under the Ancillary Agreements and which is consistent with normal business practices of companies similarly situated at all times during which any SHP2 Inhibitors or Product is being clinically tested in human subjects or commercially distributed or sold. Sanofi may fulfill such obligation through self- insurance. Each Party shall provide the other Party with evidence of such insurance upon request and, in the case of RevMed, shall provide Sanofi with written notice at least [***] prior to the cancellation, non-renewal or material changes in such insurance. It is understood that such insurance shall not be construed to create a limit of either Party's liability with respect to its indemnification obligations under this Article XIV. Article XV. GENERAL PROVISIONS 15.1 Force Majeure. Neither Party shall be held liable to the other Party nor be deemed to have defaulted under or breached this Agreement for failure or delay in performing any obligation under this Agreement to the extent such failure or delay is caused by or results from causes beyond the reasonable control of the affected Party, including embargoes, war, acts of war (whether war be declared or not), acts of terrorism, insurrections, riots, civil commotions, strikes, lockouts or other labor disturbances (whether involving the workforce of the nonperforming Party or of any other Person), fire, floods, earthquakes or other acts of God, or acts, generally applicable action or inaction by any governmental authority (but excluding any government action or inaction that is specific to such Party, its Affiliates or Sublicensees, such as revocation or non-renewal of such Party's license to conduct business), or omissions or delays in acting by the other Party, or unavailability of materials related to the Manufacture of the Products (each cause, an event of "Force Majeure"). The affected Party shall give notice to the other Party in writing as soon as reasonably practical but no later than [***] after the occurrence of the event of Force Majeure, specifying the nature and extent of the event of Force Majeure, its anticipated duration and any 74 Source: REVOLUTION MEDICINES, INC., S-1, 1/17/2020 action being taken to avoid or minimize its effect. The suspension of performance allowed hereunder shall be of no greater scope and no longer duration than is reasonably required, and the affected Party shall promptly undertake and continue diligently all reasonable efforts necessary to cure such force majeure circumstances or to perform its obligations in spite of the ongoing circumstances. In the event that RevMed is the non-performing Party and the Force Majeure continues for more than [***] (which period, in its entirety or a portion thereof, is prior to the commencement of the Registration Program for a Product, which Development thereof is impacted by such Force Majeure), Sanofi's payment obligations under Article IX shall be suspended until notification by RevMed to Sanofi of the termination of such Force Majeure Event (and any related triggers and deadlines shall be similarly suspended). 15.2 Assignment; Change of Control. (a) Neither Party may assign this Agreement or any of its rights or obligations hereunder, except as expressly permitted hereunder, or delegate any of its obligations under
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Extract the exact clause related to "Warranty Duration" from the excerpt above.

assistant: Not found.