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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of the State of Washington, and the ordinances and rules of King County, Washington and the City of Seattle, Washington as they presently exist or as they may from time-to-time be amended, including without limitation, any rule or regulation of the NFL or any agreement to which the NFL is a party which restricts the visibility of signage within the Kingdome during NFL games which are televised nationally. The obligations of either party to perform under this Agreement shall be excused if such failure to perform or any delay is caused by matters such as acts of God, strikes, lockout, work stoppage, picketing, damage or concerted action by any employee or labor organization, civil commotion, riots, war, acts of government, or any other cause whether similar or dissimilar to those enumerated which are reasonably beyond the control of the party obligated to perform. Upon the occurrence of such 4. event, the duties and obligations of the party shall be suspended for the duration of the event preventing performance. 10. Entire Agreement. The entire agreement between the parties pertaining to ---------------- the subject matter of this Agreement is incorporated into this document. This Agreement may not be modified or amended except by a writing duly executed by the parties hereto. This Agreement supersedes any and all prior agreements and understandings between the parties. 11. Successor Interests. Neither this Agreement nor any of the rights or ------------------- obligations of either FNW or Sponsor hereunder may be assigned, transferred or conveyed by operation of law or otherwise by either party, nor shall such agreements or rights inure to the benefit of any trustee in bankruptcy, receiver, creditor, or trustee of either party's business or its properties whether by operation of law or otherwise, except with the prior written consent of the other party, which consent shall not be unreasonably withheld, and the delivery of a written document in which the assignee assumes all of the obligations of the assigning party and the assigning party acknowledges that it will continue to be bound to such obligations if not performed by the assignee. For purposes of this Paragraph 11, the transfer of a fifty percent (50%) or greater ownership interest in a party shall be deemed to be an assignment of this Agreement. Notwithstanding the foregoing, no assignment or attempted assignment by Sponsor shall be valid except to a party which intends to continue the business of Sponsor as presently conducted. Sponsor does hereby consent to any transfer or assignment by FNW of its rights under this Agreement to an affiliate of FNW without any additional prior consent of Sponsor. Subject to the foregoing, this Agreement shall be binding upon and shall inure to the benefit of all successors and assigns of the parties. 12. Confidentiality. Each of the parties deems the provisions of this Agreement --------------- to be confidential and proprietary in nature. FNW and Sponsor each agree that the terms of this Agreement will be kept confidential and will not be disclosed in any manner whatsoever, in whole or in part, by either party without the prior written consent of the other party except to the extent necessary for such party to enforce its rights under this Agreement or as either party may be advised by its legal counsel that it is obligated to disclose the terms of such agreements. Moreover, each party agrees to disclose the terms of this Agreement only to its respective&sbsp;officers, employees, agents and representatives who need to know of such terms and who agree to be bound by the confidentiality terms of this Paragraph. Each party shall be responsible for any breach of this Paragraph by its respective officers, employees, agents and representatives. The terms of this Paragraph shall survive the expiration or termination of this Agreement for whatever reason for a period of three (3) years after such expiration or termination. Notwithstanding the foregoing, FNW may disclose the terms of this Agreement to King County, Washington and to lenders, legal counsel, and financial advisors. 13. Washington Law. This Agreement shall be deemed to have been made in the -------------- state of Washington and shall be construed in accordance with the laws of the state of Washington. The exclusive venue for any suits or actions arising out of this Agreement shall be in the Superior Court for the State of Washington for King County or in the United States District Court for the Western District of Washington. 14. Notices. All notices under this Agreement shall be in writing
"""

Extract the exact clause related to "Anti-Assignment" from the excerpt above.

assistant: Notwithstanding the foregoing, no assignment or attempted assignment by Sponsor shall be valid except to a party which intends to continue the business of Sponsor as presently conducted.