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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copy of the PaperExchange Content displayed on the Co-Branded Sites to PaperExchange in electronic format and destroy all other copies of such content, (h) all rights of VerticalNet to arrange for the sale of advertising on the Third Party Advertising Allocation on the PaperExchange Site shall immediately cease, (i) VerticalNet shall retain ownership of the URLs at which the Co-Branded Sites are located, (I) the Co-Branded URLs shall be owned by the party that offers to pay the highest amount to the other for the ownership of such URLs upon payment of such amount to the other party (k) if the agreement is terminated during the Initial Term by VerticalNet pursuant to Section 8.2 [Termination for Cause], (x) VerticalNet shall be released from its obligations under Section 5.8.1 [Non-Competition] and (y) PaperExchange's obligations under Sections 7.2 [Advertising Revenue] and 7.4 [Revenue Sharing] shall be extended for one year after the date of such termination, and (I) if the agreement is terminated during the Initial Term by PaperExchange pursuant to Section 8.2 [Termination for Cause], VerticalNet shall pay to PaperExchange, as liquidated damages, an amount equal to the product determined by multiplying (1) a fraction, the numerator of which shall be the number of days between the effective date of termination and the scheduled expiration date of the Initial Term, and the denominator of which shall be the number of days 14 between the Effective Date and the scheduled expiration date of the Initial Term, by (2) ***** 9. DISPUTE RESOLUTION 9.1. Negotiation and Escalation. If any controversy or claim arises relating to this Agreement, the parties will attempt in good faith to negotiate a solution to their differences, including progressively escalating any controversy or claim through senior levels of management. If negotiation does not result in a resolution within 30 days of when one party first notifies the other of the controversy or claim, either party may resort to arbitration under Section 9.2 [Arbitration]. 9.2. Arbitration. Any controversy or claim between the parties concerning any breach or alleged breach of this Agreement or performance or nonperformance of any obligation under this Agreement which cannot be resolved by negotiation will be resolved by binding arbitration under this Section 9.2 [Arbitration] and the then-current Commercial Rules and supervision of the American Arbitration Association (the "AAA"). If any part of this Section 9.2 [Arbitration] is held to be unenforceable, it will be severed and will not affect either the duty to arbitrate or any other part of this Section 9.2 [Arbitration]. The arbitration will be held in New York, New York, before a sole disinterested arbitrator who is knowledgeable in business information and the Internet and experienced in handling commercial disputes. The arbitrator shall be appointed jointly by the parties hereto within 30 days following the date on which the arbitration is instituted. If the parties are unable to agree upon the arbitrator within such 30-day period, the AAA shall be instructed to select such arbitrator within 15 days thereafter. The arbitrator's award will be final and binding and may be entered in any court Source: PAPEREXCHANGE COM INC, S-1/A, 3/22/2000 having jurisdiction. The arbitrator will not have the power to award punitive or exemplary damages, or any damages excluded by, or in excess of, any damage limitations expressed in this Agreement. Issues of arbitrability will be determined in accordance solely with the federal substantive and procedural laws relating to arbitration; in all other respects, the arbitrator will be obligated to apply and follow the substantive law of the Commonwealth of Pennsylvania. 9.3. Equitable Relief. Notwithstanding anything to the contrary in this Agreement, in the event of an alleged violation of Article 10 [CONFIDENTIALITY] of this Agreement by either party, the party alleging such a violation may seek temporary injunctive or other appropriate equitable relief from any court of competent jurisdiction pending appointment of an arbitrator. The party requesting such relief shall simultaneously file a demand for arbitration of the dispute, and shall request that the American Arbitration Association proceed under its rules for an expedited hearing. 9.4. Costs. Unless the arbitrator, if any, determines otherwise, each party will bear its own attorneys' fees and other costs associated with the negotiation and arbitration provided for by this Article 9 [DISPUTE RESOLUTION], except that costs and expenses of the arbitrators shall be shared equally. If court proceedings to stay litigation or compel arbitration are necessary, the party who unsuccessfully opposes such proceedings will pay all associated costs, expenses and attorneys' fees that are reasonably
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Extract the exact clause related to "Parties" from the excerpt above.