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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COFS' ability to lease the land for the Sale of CRA Water Rights to STW, including any documents showing the prior sale or conveyance of any CRA or water rights from the Property; and d. names and addresses of engineers and/or hydrogeologists recommended to perform the Post-Well Study (ies). The Post-Well Study (ies) shall be performed by a hydrogeologist(s) mutually agreed to by both Parties. -2- 8. Post-Well Study Requirements. Any Post-Well Studies shall be paid for by STW and shall include: a. a chemical analysis and performance by a qualified certified laboratory mutually approved by the Parties to determine the quality of the water and its characteristics at that location; b. any documents related to the drawdown or recharge rate affecting the producing capacity; and c. TDS measurements of CRA water produced by STW. 9. COFS Responsibilities. COFS shall perform the following services: a. administer and provide all necessary insurance to insure its activities in relation to the AGREEMENT; and b. possess or obtain any and all necessary property rights for the activities covered in this AGREEMENT, including both CRA and surface rights to the Property. 10. Construction and Post-Well Study Costs. STW will pay all reasonable and necessary costs to: (a) construct the improvements to the Existing CRA Well or the Replacement CRA Well (including the cost of securing any necessary regulatory approval for the improvements to the Existing CRA Well and the Replacement CRA Well); (b) obtain the Post-Well Study (ies); and (c) reasonable consulting costs related to the negotiation and execution of the AGREEMENT. 11. STW Termination Rights. STW shall have the right to unilaterally terminate the provisions of this AGREEMENT related only to the Property, and not proceed further after the completion of any phase of the project and not incur any additional costs. So long as STW is progressing through the following phases, and subject to the other terms of this AGREEMENT, COFS may not terminate the AGREEMENT during the: a. Pre-well study (ies), b. completion of improvements to the Existing CRA Well, c. completion of the Replacement CRA Well, if necessary, and d. Post-Well Study (ies). Should COFS unilaterally terminate the provisions of this AGREEMENT related to COFS Property only, with the right to do so beginning on a period beginning no sooner than ninety (90) days following the Post-Well Study (ies), and ending at the one year period following the Post-Well Study (ies), during which STW may exercise its Option to Produce Water, in accordance with Section 15 of this AGREEMENT, COFS shall reimburse STW for 100% of the costs paid by STW up to the point of such termination, pursuant to the AGREEMENT, according to a reasonable accounting schedule of costs prepared by STW and submitted to COFS. Once STW exercises its Option to Produce Water pursuant to Section 15 of this AGREEMENT, and pays COFS its Bonus Payment, in accordance with Section 14(b) of this AGREEMENT, COFS may no longer unilaterally terminate this AGREEMENT during the Term. If STW terminates the AGREEMENT and COFS sells water within twenty (20) years from the Effective Date of this AGREEMENT from one or more producing water well(s) developed by STW, STW shall be reimbursed the amount expended for drilling the producing well(s), to be paid from the sale of water produced by COFS from the producing well(s). Such reimbursement shall occur based on COFS' net revenues received from CRA water sales from the producing well(s) in six (6) month increments, which shall begin on the date COFS begins selling CRA water from producing water well(s), and shall end upon reimbursement in full of the amount STW is owed for drilling any producing well(s). -3- 12. Title of Producing Wells. Title and ownership of the Existing CRA Well, the Replacement CRA Well and any additional wells drilled on the Property by STW (the "Additional Wells") shall be transferred to STW by COFS and shall be held by STW; however, upon termination of the provisions of this AGREEMENT that relate to COFS Property, STW shall transfer the title(s) back to COFS upon COFS' reimbursement of STW as necessary under this AGREEMENT. 13. Uses, Maintenance, Construction and Operation of Wells. STW will construct, maintain, operate, own, and repair (as needed) the Existing CRA Well, the Replacement CRA Well and any Additional Wells, and in doing so, and in the wells' operation and repair, STW shall: a. conduct all work and operations in a businesslike manner consistent with good and economical practices and with due regard for
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Extract the exact clause related to "Parties" from the excerpt above.