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:
"""
Seahawks.com 1. One (1) rotating banner ad on Seahawks.com for sixty (60) days (August through September 1999) Extension beyond the sixty (60) days to offered to Sponsor at favorable cpm based rate. 2. Seahawks to promote Sponsor online store from Seahawks.com's front page by providing a graphic and a text link directing visitors to Mercata.com. Text and graphics to be provided by Sponsor, and reviewed and approved by Seahawks.com. 3. Sponsor acknowledgement on Seahawks Television network web page on Seahawks.com 4. Sponsor will feature an online Seahawks-themed store selling Seahawks merchandising at Mercata.com. D. VIP Benefits 1. Two (2) season tickets with option to purchase two (2) playoff tickets 2. Twenty (20) tickets to two (2) preseason home games, August 14 and August 28, 1999. 3. One half-page color ad in Seahawks Insider for the 1999 season. Deadline for ad July 23, 1999. If Sponsor cannot meet the deadline, Seahawks will provide similar opportunity to be determined (i.e.: letter to season ticket holders introducing Mercata). 4. One (1) trip for two (2) to Training Camp. Includes transportation, hotel and entertainment 5. One "Advertorial" in first pre-season issue of NFL Insider to explain the Mercata 'story' and groundbreaking partnership with the Seahawks (Mercata to write and provide advertorial). 6. Mercata's use of Seahawks trademarks for promotional purposes extends throughout the 1999 season. 2. 2. Term. The term of this Agreement shall commence on July 19, 1999 and shall ---- thereafter continue until all above described Sponsor benefits are completed, but in no event beyond the end of the 1999 season (the "Term"). This Agreement is noncancellable by either party except for termination in accordance with Paragraph 7, below, and may be mutually extended by written agreement of the parties. 3. Consideration. In consideration of the sponsorship rights and other services ------------- and products granted and provided to Sponsor by FNW hereunder, Sponsor hereby agrees to pay FNW a sponsorship fee in the amount of Forty thousand Dollars ($40,000 net) (the "Sponsorship Fee"). 3.1. Invoices and Payment. FNW will send Sponsor invoices Sponsorship Fee in -------------------- two (2) monthly installments beginning September 1, 1999. Invoices are payable thirty (30) days after receipt. A five percent (5%) late fee will be added to all invoices which become past due and interest at a rate of twelve percent (12%) per annum will be charged on all balances not paid within thirty (30) days of the date they are due. 4. Sponsor's Content and Design. The content and design of Sponsor's creative ---------------------------- material shall be within the discretion of Sponsor. However, if FNW objects to any such material when it is provided or thereafter, it shall notify Sponsor as soon as possible and Sponsor shall take prompt action to address FNW's concerns. 5. Trademarks ---------- 5.1. Use of Sponsor's Trademarks. FNW shall not, by this Agreement, obtain --------------------------- any right, title or interest in the trademarks or other proprietary property of Sponsor, nor shall this Agreement give FNW the right to use, refer to, or incorporate in marketing or other materials the name, logos, trademarks, designs, identifications, or copyrights of Sponsor in any manner except as authorized by Sponsor. Sponsor acknowledges that FNW and parties conducting events within the Kingdome may televise, videotape, or take still photographs of events occurring in the Kingdome. Sponsor hereby consents to the commercial exploitation of such television broadcasts, video tapes and still photographs notwithstanding the fact that the content and design of Sponsor's images may be visible in such television broadcasts, video tapes and still photographs. 5.2. Use of FNW and Seattle Seahawks Trademarks. Sponsor shall not, by this ------------------------------------------ Agreement, obtain any right, title or interest in the trade names or trademarks of FNW, the Seattle Seahawks, the NFL, NFL Enterprises, L.P., NFL Properties, Inc. or any affiliate of such, nor shall any such agreements give Sponsor the right to use, refer to, or incorporate in marketing or other materials the names, logos, trademarks, designs, identifications or copyrights of&bbsp;FNW, the Seattle Seahawks, the NFL, NFL Enterprises, L.P., and NFL Properties, Inc. without the prior written approval of FNW, which approval may be withheld in FNW's reasonable discretion. Sponsor may use Seahawks trademarks for promotional purposes as necessary to convey the Sponsor benefits described herein. However, all such rights shall expire at the end of the 1999 regular season. 6. Indemnification. FNW agrees to defend, indemnify and hold Sponsor harmless --------------- from and against all claims, suits, liabilities, costs and expenses, including reasonable attorney costs and fees, for
"""

Extract the exact clause related to "Exclusivity" from the excerpt above.

assistant: Not found.