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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which the Offering Party (or its affiliate) desires to accept, under which the Offering Party or one of its affiliates would acquire the ownership of real property in the Market Area (the "Development Property") on which a Hyatt All-Inclusive Resort would operate (a "Development Opportunity"). If the Offering Party is required to offer the Receiving Party a Development Opportunity pursuant to this Section 1, the Offering Party must deliver written notice to the Receiving Party, together with reasonable due diligence information in the Offering Party's possession to enable the Receiving Party to evaluate the Development Opportunity (collectively, the "Offer Notice"). The Receiving Party will have ten (10) business days after receiving the Offer Notice to notify the Offering Party whether the Receiving Party exercises its right of first offer for that Development Opportunity. If the Receiving Party and exercises its right of first offer hereunder, and: (a) if the Receiving Party is Playa, then Playa (or its affiliate) and Hyatt's affiliate shall negotiate in good faith the terms of a management agreement and related documents under which Playa (or its affiliate) would manage a Hyatt All-Inclusive Resort on the Development Property (subject to a franchise agreement between Hyatt and the affiliate of Hyatt that would own the Development Property), provided that Hyatt's affiliate acquires the Development Property on terms acceptable to it within sixty (60) days after delivery of the Offer Notice, and (b) if the Receiving Party is Hyatt, then Playa or its affiliate shall negotiate in good faith the terms of a franchise agreement and related documents for the operation (and, if applicable, development) of the Hyatt All-Inclusive Resort on the Development Property, provided that Playa's affiliate acquires the Development Property on terms acceptable to it within sixty (60) days after delivery of the Offer Notice. 2 If the Receiving Party declines its right of first offer with respect to any Development Opportunity, or fails to notify the Offering Party of its decision within the ten (10) business-day period described above, or if Hyatt's affiliate or Playa's affiliate (as applicable) fails to acquire the Development Property within the sixty (60)-day period described above, then the right of first offer with respect to that Development Opportunity shall expire, and the Offering Party thereafter may acquire, develop and/or operate (and/or grant any other person or entity the right to acquire, develop and/or operate) an all-inclusive resort or other business on the Development Property without any restriction under this Agreement, subject to any restrictions under any Existing Franchise Agreement or other agreement between Hyatt (or its affiliate) and Playa (or its affiliate). 2. Introduction to Other Opportunities. If a third party (who is not an affiliate of Hyatt) approaches Hyatt during the Development Term with a proposed offer or arrangement, which Hyatt desires to accept, under which the third party would operate a Hyatt All-Inclusive Resort in the Market Area, and if that third party has not then already designated a management company to operate that Hyatt All-Inclusive Resort, then Hyatt agrees to provide notice to Playa and introduce Playa to that third party for purposes of enabling Playa (at its option) to negotiate for the opportunity to manage that Hyatt All-Inclusive Resort for that third party. Similarly, if a third party (who is not an affiliate of Playa) approaches Playa during the Development Term with a proposed offer or arrangement, which Playa desires to accept, under which Playa or its affiliate would manage an all- inclusive resort in the Market Area for that third party, and if that third party has not then already designated a brand under which that all-inclusive resort would operate, then Playa agrees to provide notice to Hyatt and introduce Hyatt to that third party for purposes of enabling Hyatt (at its option) to negotiate for the opportunity to provide that third party franchise rights to brand that resort as a Hyatt All-Inclusive Resort. 3. Notices. Any notice required under this Agreement to be given by either Party to the other Party shall be in writing in the English language. Any required notice shall be effective two business days after it is sent by a recognized international courier service to the address of the other Party stated in this Agreement, or such other address as shall be notified to the other Party in writing, and any receipt issued by the courier service shall be conclusive evidence of the fact and date of sending of any such notice. Contact details of the Parties are as follows: For
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Extract the exact clause related to "Effective Date" from the excerpt above.