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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Party will be responsible for any breach by its Affiliates of its obligations in connection with this Agreement, and each such Party will remain responsible for any responsibilities that it has delegated to an Affiliate as though such Party had performed (or failed to perform) such responsibilities itself. 15.2 Prior Agreements. The Parties agree on behalf of themselves and their respective Affiliates that any prior Confidentiality Agreement, by and between PB and SFJ (the "Prior CDA") is hereby terminated and superseded by this Agreement and that all Information disclosed under or pursuant to the Prior CDAs will constitute Confidential Information disclosed pursuant to this Agreement and will be subject to the terms of ARTICLE 10, with the confidentiality and non-use provisions of ARTICLE 10 applying retroactively to such Confidential Information from the date of disclosure. 15.3 Notices. Any notice or other communication required or permitted to be given by either Party under this Agreement will be in writing and will be effective when delivered if delivered by fax, e-mail, hand, reputable courier service, or five (5) days after mailing if mailed by registered or certified mail, postage prepaid and return receipt requested, addressed to the other Party at the following addresses or such other address as may be designated by notice pursuant to this Section 15.3.: 15.3.1 If to PB: PhaseBio Pharmaceuticals, Inc. 1 Great Valley Parkway, Suite 30 Malvern, PA 19355 USA Attn: Chief Executive Officer with a copy to: Attn: Vice President, Head of Legal (at the address set forth above) Source: PHASEBIO PHARMACEUTICALS INC, 10-K, 3/30/2020 and to: Cooley LLP 11951 Freedom Drive Reston, VA 20190 USA Attn: Christian E. Plaza 15.3.2 If to SFJ: SFJ Pharmaceuticals X, Ltd SIX, 2nd Floor, Cricket Square PO Box 2681 Grand Cayman, KY1-1111 Cayman Islands Attn: Robert DeBenedetto with a copy to: Morrison & Foerster LLP 755 Page Mill Road Palo Alto, CA 94304-1018 Attention: Michael O'Donnell 15.4 Force Majeure. Neither Party will be liable for any breach or delay in performance of any obligation under this Agreement to the extent caused by any of the following: war, terrorism, riot, fire, explosion, accident, flood, sabotage, changes in Applicable Laws, actions of Governmental Authorities, or any other event beyond the reasonable control of such Party. The Party invoking this Section 15.4 must provide prompt written notice and full particulars of such event to the other Party and will use diligent and commercially reasonable efforts to mitigate the effects of any such force majeure event on such Party's compliance with and performance under this Agreement. 15.5 Use of Names. Neither Party will use the other Party's nor any of its Affiliates' (including the limited partners of SFJ's or its Affiliates') names or trademarks in any promotional materials or advertising without the prior written consent of the other Party except as otherwise expressly permitted in this Agreement. 15.6 Assignment. Without the prior written consent of the other Party hereto, neither Party will sell, transfer, assign, pledge or otherwise dispose of, whether voluntarily, involuntarily, by operation of law or otherwise, this Agreement or any of its rights or duties hereunder; provided, however, that either Party may assign, sublicense or transfer this Agreement and all of its rights and obligations hereunder, in their entirety, to any of its Affiliates or to a successor in connection with the sale or other transfer of all or substantially all of its business or assets to which this Agreement relates, whether by merger, sale of stock, sale of assets or otherwise, and Source: PHASEBIO PHARMACEUTICALS INC, 10-K, 3/30/2020 whether this Agreement is actually assigned or is assumed by a Third Party acquirer or the surviving corporation resulting from such transaction by operation of law (e.g., in the context of a reverse triangular merger). Notwithstanding the foregoing, any assignment of the rights or obligations under this Agreement by a Party (i) to an Affiliate shall require such Party to guarantee the performance of such Affiliate's financial and performance obligations hereunder or (ii) in connection with the sale or other transfer of all or substantially all of such Party's business or assets to which this Agreement relates shall require the ultimate Affiliate controlling the other party in such transaction to guarantee such Party's financial and performance obligations hereunder and such Party shall remain liable for such financial and performance obligations notwithstanding such sale or other transfer of all or substantially all of such Party's business or assets to which this Agreement relates. Notwithstanding any of the foregoing, without the consent of
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Extract the exact clause related to "Anti-Assignment" from the excerpt above.

assistant: Without the prior written consent of the other Party hereto, neither Party will sell, transfer, assign, pledge or otherwise dispose of, whether voluntarily, involuntarily, by operation of law or otherwise, this Agreement or any of its rights or duties hereunder; provided, however, that either Party may assign, sublicense or transfer this Agreement and all of its rights and obligations hereunder, in their entirety, to any of its Affiliates or to a successor in connection with the sale or other transfer of all or substantially all of its business or assets to which this Agreement relates, whether by merger, sale of stock, sale of assets or otherwise, and