strictly limited to refunding to Sponsor that portion of any consideration paid by Sponsor for which Sponsor has not received the rights granted to it herein. 9. Limitations.&sbsp; This Agreement is subject to the Constitution and Bylaws and ----------- other rules and regulations of the NFL, the statutes and regulations 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