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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for approval of responsible party determination. The report should include, but not necessarily be limited to, Product type, Serial Number, Defect Symptoms, Analysis, Corrective actions, Suggested responsible party and status. Page 34 of 38 *Confidential Treatment Requested Exhibit F Sonos Supplier Performance Review F.1 Introduction. Sonos supplier management strategy is based on developing strong working relationships with its suppliers. The results Sonos seek will not occur from random sourcing or selecting suppliers solely on competitive quotations. It will result from working closely with the best existing suppliers to improve quality, productivity, cost, and all other elements of supplier performance. The basic strategy entails establishing mutual performance expectations and metrics, providing supplier performance feedback, initiating corrective actions to ensure continuous improvements, and rewarding the best suppliers with the opportunity for future new business. The Sonos Supplier Performance Review program provides a framework for effective communication between Sonos and its suppliers regarding the specific elements of supplier performance. The result of establishing our expectations and supplier performance feedback will ensure maximum customer satisfaction and increased profitability for all contributors to the system. To accomplish these objectives, Sonos aims to: • Establish and strengthen long-term partnerships that result in mutual success between the Parties • Set expectations and metrics that are aggressive yet realistic and achievable • Utilize a team approach to achieve performance improvements • Be open to 2-way feedback and commit ourselves to continuous improvement, just as we expect from our supply and manufacturing partners Successful supplier performance in the areas of Quality, Business, Engineering, Supply Chain & Operational Excellence is expected and necessary for both parties to achieve repeat business, increased sales and profitable growth. F.2 Supplier Performance Review Metrics. IAC must maintain a competitive advantage by providing products of the highest quality and a competitive total cost, with operations that demonstrate best in class manufacturing, quality, engineering and supply chain innovation and execution. The Parties will mutually agree in good faith upon valid performance metrics, goals, and a relevant scoring template and process. The Parties agree to meet [*] to review IAC's performance and scoring for the period. It is targeted to alternate meeting locations between Sonos' USA HQ office and IAC's factory. Dates and locations for such reviews will be agreed between the Parties with reasonable notice. Page 35 of 38 *Confidential Treatment Requested Exhibit G Product Pricing Formula Item Code Calculation [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] G.1 Pricing Formula Definitions: [*] All inputs to the Pricing Formula should be based upon validated actual data. Sonos reserves the right to audit and measure any manufacturing or test process or cycle time, as well as review any relevant IAC documentation to verify that Product pricing is calculated accurately. Consistent with Section 6.4 of this Agreement, Sonos and IAC will review all inputs to the above Pricing Formula for each Product on a quarterly basis, and adjust Product pricing as necessary to become effective in the next quarter. Page 36 of 38 *Confidential Treatment Requested Exhibit H ERS Statement of Work ERS SOW to be added later Page 37 of 38 Exhibit I Engineering Change Process Engineering Change Process to be added later Page 38 of 38 [*] Certain confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 406 of the Securities Act of 1933, as amended. SONOS, INC. AMENDMENT TO MANUFACTURING AGREEMENT September 24, 2014 WHEREAS, Sonos, Inc. (hereinafter "Sonos") and Inventec Appliances Corporation (hereinafter "IAC") have entered into a certain Manufacturing Agreement dated September 4, 2014 (the "Agreement"); and WHEREAS, both Sonos and IAC desire to modify certain terms of the Agreement as specified below. NOW, THEREFORE, in consideration of the mutual promises and covenants contained herein and for other good and valuable consideration the sufficiency of which is hereby acknowledged by both parties hereto, the parties agree to amend and modify the Agreement as set forth below: 1. Section 6.5 of the Agreement is hereby replaced in its entirety with the following: 6.5 Shipping Term; Title and Risk of Loss. Unless otherwise specified to the contrary on a Purchase Order (and subsequently acknowledged in writing by IAC), shipping terms are [*] and include all elements of the INCOTERMS 2010 definition with the following modifications: [*] 2. Exhibit D of the Agreement is hereby replaced
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Extract the exact clause related to "Effective Date" from the excerpt above.

assistant: September 4, 2014