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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the Co-Branded Site and this Agreement. VerticalNet will identify to Impresse primary and secondary contacts who will be familiar with the Co-Branded Site and this Agreement. 3.3. VerticalNet shall have access to technical support from Impresse by telephone from 8 a.m. Pacific Standard Time to 5 p.m. Pacific Standard Time, Monday through Friday, Impresse holidays excluded (each a "Business Day," collectively "Business Days"). Impresse shall have access to technical support from VerticalNet by telephone from 6 a.m. Eastern Standard Time to 6 p.m. Eastern Standard Time, Monday through Friday, VerticalNet holidays excluded. 4. THE COMMERCIAL TERMS 4.1. DEVELOPMENT FEES. For the design, development and integration of the V-Solutions Area and the VerticalNet Area of the Co-Branded Site, Impresse shall pay to VerticalNet a one-time, nonrefundable development fee in the amount of [*] payable on the Effective Date. 4.2. SLOTTING FEES. For the display of the V-Solutions Area and the V-Solutions Link, Impresse shall pay to VerticalNet a slotting fee in the amount of [*] payable pursuant to the terms of Section 4.5 [PAYMENT TERMS]. 4.3. BANNER/NEWSLETTER PURCHASE COMMITMENT. During the Term of this Agreement, Impresse agrees to purchase from VerticalNet Banners and Newsletters for a total price of at least $[*] as set forth below in this Section 4.3 [BANNER/NEWSLETTER PURCHASE COMMITMENT]. All prices for such Banners and Newsletters shall be offered to Impresse at a [*]% discount off of VerticalNet's then current prices for similar Banners or Newsletters. All purchases shall be subject to VerticalNet's standard terms and conditions governing advertising on VerticalNet Sites. Impresse agrees to purchase at least $[*] of such Banners and Newsletters in each calendar quarter after the Effective Date until a total of $[*] have been purchased, provided, the total dollar amount purchased by Impresse in any calendar quarter shall not consist of greater than 70% of either Banners or Newsletters. Payment of the fees set forth in this Section shall be made pursuant to the terms of Section 4.5 [PAYMENT TERMS]. 4.4. HOSTING FEE. Impresse shall pay VerticalNet a service fee of $[*] for the hosting and maintenance of the Co-Branded Site and the V-Solutions Link, payable pursuant to the terms of Section 4.5 [PAYMENT TERMS]. 4.5. PAYMENT TERMS. Impresse shall pay the fees set forth in Sections 4.2 [SLOTTING FEES], 4.3 [BANNER/NEWSLETTER PURCHASE COMMITMENT] and 4.4 [HOSTING FEE] as an aggregate, totaling $[*] payable in four equal quarterly installments of $[*] beginning on May 31, 2000 and thereafter on August 31, 2000 November 30, 2000 and February 28, 2001, respectively. 4.6. REVENUE SHARING. Impresse shall pay VerticalNet [*]of Impresse VerticalNet Revenue accruing during the term of this Agreement, payable to VerticalNet on or before the thirtieth day of the calendar quarter immediately following the quarter in which such revenue was collected by Impresse. Such payments shall be accompanied by a statement containing reasonable detail of the type and number of transactions from which the Impresse 5 * Represents confidential information for which Impresse Corporation is seeking confidential treatment with the Securities and Exchange Commission. VerticalNet Revenue was derived, the total Impresse VerticalNet Revenue for such period and the total fees payable to VerticalNet pursuant to this Section 4.6 [REVENUE SHARING]. 4.6.1. "VerticalNet Impresse Users" are the Users that register with Impresse through the Co-Branded Site, but specifically excluding those Users who have previously registered with Impresse other than through the Co-Branded Site. 4.6.2. The "Impresse VerticalNet Revenue" is Impresse's total net transaction and subscription revenues collected by Impresse during the term of this Agreement from VerticalNet Impresse Users. 4.6.3. If government regulations prevent Impresse from sharing any revenues associated with Impresse Services, VerticalNet and Impresse shall negotiate in good faith a compensation structure that seeks to provide VerticalNet with compensation equal to that set forth in Section 4.6 [REVENUE SHARING]. 4.7. TAXES. All payments required under this Agreement are exclusive of federal, state, local and foreign taxes, duties, tariffs, levies and similar assessments. When applicable, such taxes shall appear as separate items on a party's invoice or statement to the other party. Payment of such taxes or charges shall be the responsibility of the party whose obligation it is under this Agreement to make the payment in respect of which such taxes are assessed, excluding any taxes based upon the other party's net income. In lieu thereof, a party shall provide the other party with a tax or levy exemption certificate acceptable to the taxing or levying authority. Source: IMPRESSE CORP, S-1/A, 3/22/2000 4.8. AUDITS. During the term of this Agreement and
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Extract the exact clause related to "Minimum Commitment" from the excerpt above.

assistant: During the Term of this Agreement, Impresse agrees to purchase from VerticalNet Banners and Newsletters for a total price of at least $[*] as set forth below in this Section 4.3 [BANNER/NEWSLETTER PURCHASE COMMITMENT].