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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and/or Upgrades to its Customers within twenty four (24) months after their release to Corio. Changepoint agrees to make changes to the Software such that all functionality currently available in the Software will be one hundred percent (100%) thin client and browser-based as set forth in the schedule attached hereto as EXHIBIT F and made a part hereof. Changepoint agrees to promptly provide existing APIs for the Software to Corio and use commercially reasonable efforts to develop and provide applicable APIs for the web-enabled version of the Software. 3.3 ADDITIONAL MATERIALS. Changepoint shall use all commercially reasonable efforts to promptly provide Corio with, at a minimum, the following: (i) release notes; (ii) beta releases; (iii) contacts at beta customers, when requested by Corio and subject to the approval of the Changepoint; (iv) proactive bug notification; (v) Software patches; (vi) release documentation including technical reference manuals and &sbsp; user guides; and (vii) all applicable set-up data, data structures and other files relevant to installing and integrating the Software, but not including source code. These materials shall be provided at no cost to Corio. 4 FEES. 4.1 LICENSE FEES. In consideration for the licenses granted to Corio pursuant to Section 2 (except Section 2.5) of this Agreement, Corio shall pay the revenue sharing fees specified in EXHIBIT B hereto. Payment terms of such revenue sharing fees shall be as set forth in EXHIBIT B hereto. 4.2 SOFTWARE SUPPORT AND MAINTENANCE FEES. Except with respect to Software Support and Maintenance under the distribution license granted to Corio pursuant to Section 2.5 of this Agreement, Corio shall pay to Changepoint a Software Support and Maintenance fee for the support services to be provided by Changepoint specified in Section 5.3 of this Agreement and EXHIBIT C attached hereto and made a part hereof, and Updates and Upgrades, according to the fees set forth in EXHIBIT B hereto. Payment terms of Software Support and Maintenance fees shall be as set forth in EXHIBIT B hereto. Software Support and Maintenance shall automatically continue during the term of this Agreement and thereafter for the remaining term of any contracts Corio has with its Customers to continue providing the Corio Services, provided that Corio continues to pay the revenue sharing fees as provided in EXHIBIT B hereto. 7 CONFIDENTIAL TREATMENT 4.3 TAXES. All fees are exclusive of any sales taxes, Goods and Services use taxes, other use taxes and any other taxes and charges of any kind imposed by any federal, state, provincial or local governmental entity for products and services provided under this Agreement, and Corio is responsible for payment of all taxes concerning the Corio Services, excluding taxes based solely upon Changepoint's income or revenue. 4.4 AUDIT RIGHTS. Corio shall keep true and accurate books of accounts and records for determining the amounts payable to Changepoint under this Agreement. Such books and records shall be kept for at least three (3) years following the end of the calendar month to which they pertain, and shall be open for inspection by an independent certified public accountant reasonably acceptable to Corio, and made subject to Corio's standard non-disclosure agreement, for the sole purpose of verifying the amounts payable to Changepoint under this Agreement. Such inspections may be made no more than once each calendar year, at reasonable times and upon reasonable notice. Changepoint shall bear all costs and expenses of such inspection. If any such inspection discloses a shortfall or an overpayment, the appropriate party shall promptly pay the amount of such shortfall or refund such overpayment. In addition, if any such inspection reveals an underpayment of more than five percent (5%) for the period under audit, Corio shall reimburse Changepoint for the reasonable cost of the examination. 4.5 REPORTING. Within thirty (30) days following the end of each calendar month, Corio will submit to Changepoint a report in a form reasonably acceptable to both parties setting forth the number of Customers and Software Users which have been licensed to use the Software during the preceding month, as well as the Application Management Revenue received by Corio during the preceding month. The report shall also set forth all amounts collected by Corio pursuant to the Distribution License granted under Section 2.5 of this Agreement during the preceding month, and a calculation of all amounts due to Changepoint for such distributions by Corio during the preceding month. 4.6 INTEREST. In the event any payment by Corio under this Agreement is not made within thirty (30) calendar days of its due
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Extract the exact clause related to "Audit Rights" from the excerpt above.

assistant: In addition, if any such inspection reveals an underpayment of more than five percent (5%) for the period under audit, Corio shall reimburse Changepoint for the reasonable cost of the examination.