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:
"""
anything to the contrary in Attachments A, G or H, no liability shall result to either party from delay in performance or non- performance of an obligation hereunder (including an obligation to make payment) in whole or in part caused by circumstances reasonably beyond the control of the party affected, including but not limited to, acts of God, terrorist activity, transportation failure, breakdowns, equipment failure, criminal enterprise, sabotage, diminishment, or failure of power, telecommunications, data systems or networks, shortage or inability to obtain Product or raw material for Product, or good-faith compliance with any governmental order or request (whether valid or invalid). Notwithstanding any other notice requirement in this Agreement, actual notice (e.g., phone, email, letter) to a counterparty of a delay or failure described in this provision will constitute effective notice for purposes of this provision. Regardless, however, of the occurrence or nonoccurrence of any such circumstances, if, supplies of Product or distribution logistics for, or feedstock for making Product, from any of Seller's/ExxonMobil Selling Affiliates' existing sources are curtailed or are inadequate to meet Seller's/ExxonMobil Selling Affiliates' own requirements and/or its obligations to its customers, Seller's/ExxonMobil Selling Affiliates' obligation to deliver Product during such period shall be reduced to the extent necessary, in Seller's/ExxonMobil Selling Affiliates' reasonable judgment, to apportion fairly among Seller's/ExxonMobil Selling Affiliates' own requirements and its customers such Product as received and as may be available in the ordinary and usual course of Seller's/ExxonMobil Selling Affiliates' business from any existing sources of supply at the location(s) from which deliveries like those covered hereby are normally shipped. Seller/ExxonMobil Selling Source: WEST PHARMACEUTICAL SERVICES INC, 8-K, 1/16/2020 Affiliates shall not be obligated to purchase or obtain Product, or feedstock to make Product, to replace deliveries omitted or curtailed under this paragraph. CHANGE IN CIRCUMSTANCES Notwithstanding anything to the contrary in Attachments A, G or H, in connection with any Change in Circumstances (as defined below), and without limiting Seller's/ExxonMobil Selling Affiliate's other rights under this Agreement or applicable law, Seller/ExxonMobil Selling Affiliates shall have the right: (i) only if required to enable Seller/ExxonMobil Selling Affiliate to comply with applicable laws and regulations, to terminate this Agreement and accelerate all amounts due from Buyer hereunder, making them immediately payable (ii) to modify the payment terms hereunder; and/or (iii) to require that Buyer/Buyer Affiliates pay in advance for shipments hereunder. Promptly after any public announcement regarding any proposed transaction that would result in a Change in Circumstances, Buyer/Buyer Affiliates shall notify Seller/ExxonMobil Selling Affiliates, in writing, of the nature of such transaction, the parties thereto and the proposed date of consummation. If Seller/ExxonMobil Selling Affiliates elects to exercise any of its rights under the preceding paragraph, Seller/ExxonMobil Selling Affiliates shall so notify Buyer/Buyer Affiliates, in writing, within forty-five (45) days after receipt of Buyer's/Buyer Affiliates' notice. As used above, "Change in Circumstances" means any of the following: (i) any transaction, or series of transactions, that would result in the transfer of at least twenty-five percent (25%) of the equity interest in Buyer/Buyer Affiliates (or of at least twenty-five percent (25%) of the equity interest in any business entity that owns or controls, directly or indirectly, at least fifty percent (50%) of the equity interest in Buyer/Buyer Affiliates ("Buyer's Parent")) to a single transferee or multiple transferees under common control; (ii) any transaction that would result in Buyer's /Buyer Affiliates' (or Buyer's Parent's) merging with one or more other entities; or (iii) any transaction not in the ordinary course of Buyer's/Buyer Affiliates (or Buyer's Parent's) business that calls for the sale, purchase or other transfer of one or more significant assets, including (without limitation) manufacturing facilities and ownership interests in other business entities. WARRANTY DISPUTE RESOLUTION Notwithstanding anything to the contrary in Attachments A, G or H, if Buyer/Buyer Affiliates and Seller/ExxonMobil Selling Affiliates are unable to agree on the quality or quantity of Product delivered and received following their internal investigations and good faith efforts to resolve the dispute, the parties shall cooperate to have the Products in dispute analyzed by a mutually selected independent testing laboratory. The results of such laboratory testing shall be final and binding on the parties on the issue of conformance of the Products. If the Products are determined to be conforming, then Buyer/Buyer Affiliates shall bear the cost of such laboratory testing. If the Products are determined not to be conforming, then Seller/ExxonMobil Selling Affiliates shall bear the cost of such laboratory testing. US LAW AND REGULATION The Parties represent, warrant and undertake
"""

Extract the exact clause related to "Insurance" from the excerpt above.