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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the CPI. By way of example, if on 1 November in a calendar year during the Term, the CPI shows that there has been an increase in prices compared with the same index on 1 November the previous year [***], then [***] in the model as of 1 January in the following year [***] of the CPI increase as recorded on 1 November, i.e. by [***]. (c) the [***] of Exhibit A shall only be amended to reflect any [***] changes to the cost of any of the [***] set out in Part 4 of Exhibit A. If at any other time during a calendar year the [***] when compared with [***], Fleet shall have the right to amend the [***] for any future invoices by providing Columbia with at least three (3) months' prior written notice. Except as otherwise set out in Section 5.1 (c), the first period during which any adjustment set out in Section 5.1 (a), (b) or (c) above will be calculated shall be [***], with the adjusted costs to be applied to the pricing model in Exhibit A for the calendar year commencing [***]. Fleet shall provide Columbia with access to all books and records necessary to verify any changes to the purchase price. 5.2 Invoicing. Upon delivery of Product to Columbia, Fleet shall submit invoices therefor to Columbia. Columbia shall pay each invoice in full within [***] after the date of receipt by Columbia of such invoice, which shall be issued no earlier than the date on which the Product is delivered to the carrier by Fleet. All payments shall be made in pounds sterling. In the event that any actual volume of Product purchased by Juniper in any calendar year means that a different purchase price should have applied to such volume of Product purchased in that calendar year (as calculated in accordance with the pricing model set out in Exhibit A), Fleet shall notify Juniper in writing of such pricing differential and shall apply a proportionate credit or debit (as applicable) to any invoices raised for the subsequent calendar year. Upon the expiration or earlier termination of this Agreement, 6 CERTAIN CONFIDENTIAL PORTIONS OF THIS EXHIBIT WERE OMITTED AND REPLACED WITH "[***]". A COMPLETE VERSION OF THIS EXHIBIT HAS BEEN FILED SEPARATELY WITH THE SECRETARY OF THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO AN APPLICATION REQUESTING CONFIDENTIAL TREATMENT PURSUANT TO RULE 24B-2 PROMULGATED UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED. Fleet shall determine the applicable purchase price for that calendar year and shall notify Juniper in writing of any underpayment or overpayment within [***] of expiration or termination (as applicable). In the event of any underpayment by Juniper, Juniper shall pay to Fleet an amount equal to the amount of any such underpayment within [***] of receipt by Juniper of such written notice. In the event of any overpayment by Juniper, Fleet shall pay to Juniper an amount equal to the amount of any overpayment within [***] of receipt by Juniper of such written notice. Fleet shall provide Columbia with access to all books and records necessary to verify any changes to the purchase price and any underpayment or overpayment." 12. Section 8 of the Existing Agreement (Insurance) shall be deleted and replaced by the following: "Fleet and Columbia shall maintain comprehensive general liability insurance, including product liability insurance against claims regarding the manufacture of Product under this Agreement and sufficient cover to meet its liabilities under this Agreement in respect of the Columbia Equipment, with insurers having an AM Best rating within the top 2 categories at the time (at the date of this Agreement known as "superior" or "excellent") or reasonably comparable coverage, in such amounts as it customarily maintains for similar products and activities, but in no event less than [***] per individual claim and [***] in the aggregate. Each party shall maintain such insurance during the Term and thereafter for so long as it customarily maintains insurance for itself for similar products and activities (but in no event less than [***] following termination or expiration)." 13. Section 10.1 (a) of the Existing Agreement (Fleet's Indemnity Obligations) shall be deleted and replaced by the following: "10.1(a) Fleet's Indemnity Obligations. Fleet shall defend, indemnify and hold harmless Columbia, its Affiliates and their respective successors and permitted assigns (and the respective officers, directors, stockholders, partners and employees of each) from and against any and all losses liabilities, claims, actions, proceedings, damages and expenses (including, without limitation, reasonable attorneys' and
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Extract the exact clause related to "Document Name" from the excerpt above.