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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other material books, records, files and documents Controlled by Aimmune solely to the extent related to the Product and which may be redacted to exclude Confidential Information of Aimmune; provided, however, that to the extent that any agreement or other asset described in this Section 14.2 is not assignable by Aimmune (whether because such agreement or asset is explicitly non-assignable or because the Third Party consent required for such assignment is not obtained), then such agreement or other asset will not be assigned, and upon the request of Xencor, Aimmune will take such steps as may be reasonably necessary to allow Xencor to obtain and to enjoy the benefits of such agreement or other asset. For purposes of clarity, (1) [***] and (2) to the extent Xencor requests [***]. 14.3 Disclosure and Delivery. Upon the termination of this Agreement, Aimmune will promptly transfer to Xencor copies of any physical embodiment of any Aimmune Know-How, to the extent then used in connection with the Development or Commercialization of the Product; such transfer shall be effected by the delivery of material documents, to the extent such Aimmune Know-How is embodied in such documents, and to the extent that Aimmune Know-How is not fully embodied in such documents, Aimmune shall make its employees and agents who have knowledge of such Aimmune Know-How in addition to that embodied in documents available to Xencor for interviews, demonstrations and training to effect such transfer in a manner sufficient to enable Xencor to practice such Aimmune Know-How but only in a manner as set out as follows in this Section 14.3. The Aimmune Know- How shall be transferred pursuant to the procedure to transfer Xencor Know-How, Regulatory Materials, and Regulatory Data in Section 2.7 applied mutatis mutandis. 14.4 Disposition of Commercialization Related Materials. Upon the termination of this Agreement, Aimmune will promptly deliver to Xencor in electronic, sortable form (a) a list identifying all wholesalers and other distributors involved in the Commercialization of the Product, will reasonably consider providing customer lists (e.g., purchasers), where permitted under Applicable Law and under applicable agreements with Third Parties, at Xencor's expense, related to the Commercialization of the Product, and (b) all Promotional Materials as well as any items bearing the Product Trademark or Product Trade Dress and/or any trademarks or housemarks otherwise associated with the Product or Xencor. 14.5 Accrued Rights. Expiration or termination this Agreement for any reason will be without prejudice to any rights that will have accrued to the benefit of a Party prior to the effective date of such expiration or termination. Such expiration or termination will not relieve a Party from obligations that are expressly indicated to survive the expiration or termination of this Agreement. 42 Source: AIMMUNE THERAPEUTICS, INC., 8-K, 2/5/2020 14.6 Survival. Notwithstanding anything to the contrary contained herein, the following provisions shall survive any expiration or termination of this Agreement: Articles: ARTICLE 1 (to the extent necessary to give effect to the other surviving provisions), ARTICLE 4 (solely with respect to remaining inventory of Product that Aimmune continues to sell after the effective date of termination), ARTICLE 7 (with respect to amounts accruing prior to expiration or termination of this Agreement), ARTICLE 11, ARTICLE 12 (for the period specified in Section 12.1.1), ARTICLE 14, ARTICLE 15 and ARTICLE 8 (with respect to amounts accruing prior to expiration or termination of this Agreement) and Sections: 2.2.1, 2.3 (with respect to the applicable Party being responsible for its Affiliates or Sublicensee, and the waiver), 2.4, 9.1, 10.2 (for [***] after the effective date of termination or expiration), 10.3 (for [***] after the effective date of termination or expiration), 10.4, and 10.5. Except as set forth in this ARTICLE 14 or otherwise expressly set forth herein, upon expiration or termination of this Agreement all other rights and obligations of the Parties shall cease. 14.7 Rights in Bankruptcy. All rights and licenses granted under or pursuant to this Agreement by Xencor and Aimmune are, and shall otherwise be deemed to be, for purposes of Section 365(n) of the U.S. Bankruptcy Code, licenses of right to "intellectual property" as defined under Section 101 of the U.S. Bankruptcy Code. The Parties agree that each Party, as licensee of certain rights under this Agreement, shall retain and may fully exercise all of its rights and elections under the U.S. Bankruptcy Code. The Parties further agree that, in the event of the commencement of a bankruptcy proceeding by or against a Party (such Party, the "Bankrupt Party") under the U.S.
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Extract the exact clause related to "Ip Ownership Assignment" from the excerpt above.

assistant: The Aimmune Know- How shall be transferred pursuant to the procedure to transfer Xencor Know-How, Regulatory Materials, and Regulatory Data in Section 2.7 applied mutatis mutandis.