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:
"""
MacroGenics all Products (including, without limitation, all MGAH22) within such Green Cross Sublicensees' possession or control; (iv) Green Cross shall cease to research, develop, market and sell any Product that infringes a Valid Claim in a MacroGenics Licensed Patent; (v) for the Products (including, without limitation, MGAH22), Green Cross shall assign and promptly transfer to MacroGenics, at no expense to MacroGenics, all of Green Cross' right, title and interest in and to (A) all regulatory filings (such as INDs, CTAs and drug master files), Regulatory Approvals, and clinical trial agreements (to the extent assignable and not cancelled) for such Products(s), to the extent that MacroGenics elects to continue development of such Product(s); (B) all data, including clinical data, materials and information of any kind *** = Portions of this exhibit have been omitted pursuant to a request for confidential treatment. An unredacted version of this exhibit has been filed separately with the Commission. 47 or nature whatsoever, in Green Cross' possession or in the possession of its Affiliates or its or their respective agents related to such Product(s); (C) all trademarks related to such Products (if such termination occurs after approval of such trademark by a Regulatory Authority); and (D) all material information, and any other information reasonably requested and required by MacroGenics, relating to the manufacture of such Products; (vi) all sublicenses under the rights granted pursuant to Section 10.1(b) shall terminate; and (vii) MacroGenics shall revoke (and Green Cross shall allow revocation of) any powers of attorney for any MacroGenics Licensed Patents that Green Cross holds as of the time of such termination; and (b) If Green Cross terminates this Agreement pursuant to Section 16.3: (i) The provisions of Section 16.6(a) shall apply; (ii) Notwithstanding anything to the contrary, MacroGenics shall continue to provide Green Cross, for up to ***, the Products (including, without limitation, all MGAH22), at the request of Green Cross in accordance with the terms of Section 6.2; and (c) If Green Cross terminates this Agreement pursuant to Section 16.5 for cause based on material breach by MacroGenics: (i) As full satisfaction of any claims Green Cross may have based upon such material breach and termination, ***: (1) Such material breach by MacroGenics results in a substantial reduction in the profit Green Cross would have received if such material breach and termination had not occurred; (2) MacroGenics committed such material breach other than as a result of a material breach committed by Green Cross; and (3) Both Parties agree in writing not to undertake arbitration in accordance with Section 17.7 to determine whether MacroGenics committed a material breach. (ii) For the avoidance of doubt, the license granted under Section 10.3 shall terminate; (iii) The provisions of Section 16.6(a) shall apply; (iv) Notwithstanding anything to the contrary, MacroGenics shall continue to provide Green Cross, for up to***, the Products (including, without limitation, all MGAH22), at the request of Green Cross in accordance with the terms of Section 6.2; and (v) Green Cross shall revoke (and MacroGenics shall allow revocation of) any powers of attorney for any Green Cross Licensed Patents that MacroGenics holds as of the time of such termination. *** = Portions of this exhibit have been omitted pursuant to a request for confidential treatment. An unredacted version of this exhibit has been filed separately with the Commission. 48 (d) Return of Confidential Information. Upon expiration or termination of this Agreement, the Parties shall comply with Section 12.1(e). 16.7 Survival. The following provisions shall survive the termination or expiration of this Agreement for any reason: Sections 1, 8.9, 8.11, 9, 10.4 (with respect to the license granted to MacroGenics), 12 (to the extent provided therein), 13, 14, 15.1, 16 and 17. 17. MISCELLANEOUS 17.1 Force Majeure. Neither Party shall be held liable to the other Party nor be deemed to have defaulted under or breached this Agreement for failure or delay in performing any obligation under this Agreement to the extent such failure or delay is caused by or results from causes beyond the reasonable control of the affected Party including, but not limited to, embargoes, war, acts of war (whether war be declared or not), insurrections, riots, civil commotions, strikes, lockouts or other labor disturbances, fire, floods, or other acts of God, or acts, omissions or delays in acting by any governmental authority or the other Party ("Force Majeure"). The affected Party shall notify the other Party of such force majeure circumstances as soon as reasonably practical, and shall promptly undertake all reasonable efforts
"""

Extract the exact clause related to "Post-Termination Services" from the excerpt above.

assistant: If Green Cross terminates this Agreement pursuant to Section 16.3: