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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performed by Subcontractor hereunder. 15.4 Right of Subcontractor to Sell Products to Others. Manufacturer understands and agrees that Subcontractor may itself use, manufacture or sell similar products as provided to Manufacturer hereunder to third parties and affiliates, some of whom may be competitors of Manufacturer, so long as: (a) Subcontractor does not use or disclose any Confidential Information of Manufacturer, (b) Subcontractor and third party do not infringe any of Manufacturer's patents or other intellectual property rights. 15.5 No Third Party Beneficiaries. The Parties agree that this Agreement is for the benefit of the Parties hereto only and is not intended to confer any legal rights or benefits on any third party, and that there are no third party beneficiaries to this Agreement or any part or specific provision of this Agreement. 15.6 Attorneys' Fees. The prevailing Party in any legal proceedings brought by or against the other Party to enforce any provision of this Agreement shall be entitled to recover against the non-prevailing Party the reasonable attorneys' fees, court costs and other expenses incurred by the prevailing Party. 15.7 Assignment; Change of Control. Neither Party may assign or transfer this Agreement by operation of law or otherwise. Any assignment made by either Party in contravention of this Section 15.7 shall be null and void for all purposes. In the event of a Change of Control (as defined below) this Agreement shall immediately terminate. A Change of Control shall occur with respect to the Manufacturer, unless Subcontractor shall have expressly consented to such Change of Control in writing. A "Change of Control" shall mean any event or circumstance as a result of which (i) any "Person" or "group" (as such terms are defined in Sections 13(d) and 14(d) of The Securities Exchange Act of 1934 (the "Exchange Act"), as in effect on the date hereof), other than the Subcontractor, is or becomes the "beneficial owner" (as defined in Rules 13(d)-3 and 13(d)-5 under the Exchange Act), directly or indirectly, of 50% or more on a fully diluted basis of the then outstanding voting equity interest of the Company, (ii) the board of directors of the Manufacturer shall cease to consist of a majority of the Manufacturer's board of directors on the date hereof (or directors appointed by a majority of the board of directors in effect immediately prior to such appointment) or (iii) the Manufacturer or any of its affiliates merges or consolidates with, or sells all or substantially all of its assets to, any other person or entity; 15.8 Amendment. This Agreement may be amended only by written amendment duly signed by authorized representatives of both Parties. 15.9 Non-Solicitation of Employees. During the term hereof and for a period of five (5) years thereafter, each Party agrees not to, either directly or indirectly, for itself or on behalf of any other person, firm, partnership, corporation or other entity hire, solicit, contract for, attempt to solicit, or cause to be solicited, the employment or services of any current or previous employee of the other Party (unless a period of sixty months has elapsed from the last date that such employee was employed by such party) without the prior written consent of such other Party. Each Party agrees that in the event it violates the provisions of this Section 15.9, it will pay to the other Party as liquidated damages, and not as a penalty, an amount equal to one hundred times (100 X) of any such employee's then-current base annual salary. 15.10 Severability; Validity. If any provision of this Agreement is held invalid or unenforceable under applicable law, the parties agree to renegotiate such provision(s) in good faith, in order to maintain or achieve the economic position enjoyed by each Party as close as possible to that under the provision(s) rendered unenforceable. In the event that the Parties cannot reach a mutually agreeable and enforceable replacement for such provision(s), then (i) such provisions shall be excluded from this Agreement, (ii) the balance of the Agreement shall be interpreted as if such provision(s) were so excluded, (iii) the balance of the Agreement shall be enforceable in accordance with its terms, and (iv) the parties will revise the Agreement to effect the intent of such excluded provisions. 15.11 Waiver. Any waiver of any kind by a Party of a breach of this Agreement must be in writing, shall be effective only to the extent set forth in such writing and shall not operate or be construed as a waiver of any subsequent
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Extract the exact clause related to "Anti-Assignment" from the excerpt above.

assistant: Any assignment made by either Party in contravention of this Section 15.7 shall be null and void for all purposes.