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:
"""
Reasonable Efforts [***] to file and seek approval for an MAA for at least one Product in all of such countries or, in the case of the Major Market Countries in the European Union, through the centralized European Union approval process. If Sanofi materially breaches its obligation set forth in this Section 5.7, [***]. 5.8 Development Records. Each Party shall maintain complete, current and accurate records of all Development activities conducted by it hereunder, and all data and other information resulting from such activities, for at least [***] after the expiration or termination of this Agreement in its entirety or for such longer period as may be required by Applicable Law. Such records shall fully and properly reflect all work done and results achieved in the performance of the Development activities in good scientific manner appropriate for regulatory and patent purposes. Each Party shall document all non-clinical studies and Clinical Trials for Products in formal written study reports in accordance with Applicable Law and national and international guidelines (e.g., GCP, GLP, and GMP). Each Party shall have the right to review and copy such records maintained by the other Party at reasonable times and to obtain access to the original to the extent necessary for regulatory and patent purposes or for other legal proceedings. 5.9 Data Exchange and Development Reports. In addition to adverse event and safety data reporting obligations pursuant to Section 6.5, each Party shall promptly provide the other Party with copies of all data and results generated by or on behalf of such Party in the course of performing the Development activities hereunder, including, in each case of data arising from 37 Source: REVOLUTION MEDICINES, INC., S-1, 1/17/2020 Clinical Trials for Products, or in such form as the JRDC may agree from time to time. Each Party shall provide the JRDC with regular reports detailing its Development activities for the Products, and the results of such activities at each regularly scheduled JRDC meeting. The Parties shall discuss the status, progress and results of each Party's Development activities at such JRDC meetings. 5.10 Clinical Samples. The Party who sponsors the applicable Clinical Trial of SHP2 Inhibitors shall retain and archive all clinical samples obtained by such Party in the course of such Clinical Trial, and shall provide the other Party reasonable access to such retained clinical samples. Article VI. REGULATORY 6.1 Regulatory Responsibilities. Subject to the Parties' cooperation as set forth in Section 6.3, and except as otherwise set forth in a Development Plan or this Article VI, Sanofi shall have the sole right and responsibility to perform all regulatory activities under the Collaboration (including conducting all correspondence and communications with Regulatory Authorities and filing all Marketing Authorization Applications and other filings with Regulatory Authorities). The Development Plan shall set forth the regulatory strategy for seeking Regulatory Approval for the Products in the Field by the FDA, EMA and other Regulatory Authorities in the Major Market Countries. 6.2 Regulatory Materials and Database. All INDs in existence as of the Effective Date related to a Product shall be solely owned and held in the name of RevMed or its Affiliate for so long as necessary for RevMed to conduct any Clinical Trial for such Product it is responsible for under the Development Plan for such Product. Following the Effective Date, each Party shall file and hold the IND and NDA for all Products in Clinical Trials conducted by it. Once RevMed has completed conducting all Clinical Trials for a Product assigned to it under the Development Plan for such Product, RevMed agrees to assign, and hereby does assign, to Sanofi all of its rights, title and interests in and to all Regulatory Approvals (including INDs and NDAs) for such Product. 6.3 Cooperation. For each Product, each Party shall cooperate reasonably with the other Party with respect to all regulatory activities under the Research Plan or Development Plans relating to the Products. Without limiting the foregoing, for such activities, each Party: (a) shall meet and discuss with the other Party through the JRDC the timing, strategy and presentation of the Pre-Registrational Meeting with the goal of developing the Registration Program and setting the regulatory path to obtain Regulatory Approval for the Product from the FDA, EMA, and PMDA; (b) shall consult with each other with respect to the preparation of the Data Package; (c) shall consult with the other Party through the JRDC regarding material regulatory matters pertaining to all Regulatory Materials of the Products in the United States, European
"""

Extract the exact clause related to "Ip Ownership Assignment" from the excerpt above.

assistant: Once RevMed has completed conducting all Clinical Trials for a Product assigned to it under the Development Plan for such Product, RevMed agrees to assign, and hereby does assign, to Sanofi all of its rights, title and interests in and to all Regulatory Approvals (including INDs and NDAs) for such Product.