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:
"""
be [ * ]from [ * ], or otherwise [ * ]the Distributor App(s) or other products of Distributor to [ * ]. 8. WARRANTIES 8.1 Each party warrants to the other that it will use reasonable care and skill in complying with its obligations under this Agreement. Distributor also represents and warrants that it will undertake commercially reasonable endeavours in good faith to comply with Google's business partner due diligence process including providing requested information. - 9 - *Confidential treatment requested Google Confidential 8.2 Google warrants that the Distribution Products will for a period of [ * ] from the date of their supply to Distributor be free from any defect which has a materially adverse effect on their use or operation. 8.3 If any of the warranties in Clause 8.1 or 8.2 is breached by Google, Distributor must tell Google as soon as possible. Distributor must give Google a reasonable time to fix the problem and (if necessary) to supply Distributor with a corrected or replacement version of the Distribution Product or a way to work-around the problem that is not materially detrimental to Distributor, or to re-perform any relevant services. This will be done without any additional charge to Distributor. If Google is able to do this within a reasonable time, Google will have no other obligations or liability in relation to that breach. 8.4 Google will not be liable for breach of any of the warranties or other terms in this Agreement to the extent that the breach arises from: (a) use of the Products other than in accordance with normal operating procedures; (b) any alterations or maintenance to the Products done by anyone other than Google or someone authorised by Google; (c) any problem with a computer on which the Products are installed, or with any equipment connected to that computer or any other software which is installed on that computer; (d) any abnormal or incorrect operating conditions; or (e) use of the Products in combination with any other hardware or software, unless this use has been approved by Google in writing. 8.5 Distributor will comply with all applicable commercial and public anti-bribery laws, including, without limitation, the UK's Bribery Act 2010 and the U.S. Foreign Corrupt Practices Act of 1977 ("Anti-Bribery Laws"), which prohibit (amongst other things) corrupt offers of anything of value, either directly or indirectly, to a government official to obtain or keep business. ''Government officials" include any government employee, candidate for public office, and employee of government-owned or government-controlled companies, public international organisations, and political parties. Furthermore, Distributor will not make any facilitation payments, which are payments to induce officials to perform routine functions they are otherwise obligated to perform. 8.6 No conditions, warranties or other terms apply to the Products, [ * ] or to any other goods or services supplied under this Agreement unless expressly set out in this Agreement. Subject to Clause 9.1, no implied conditions, warranties or other terms apply (including any implied terms as to satisfactory quality, fitness for purpose or conformance with description). 9. LIMITATION OF LIABILITY 9.1 Nothing in this Agreement shall exclude or limit either party's liability for: (a) death or personal injury resulting from the negligence of either party or their servants, agents or employees; (b) fraud or fraudulent misrepresentation; - 10 - In this Clause 9.4, "Contract Year" means a period of one year starting on the Effective Date or the relevant anniversary of the Effective Date (as appropriate). If the amount referred to in (b) above cannot be calculated accurately at the time the relevant liability is to be assessed (the "Applicable Time"), it shall be calculated on a pro-rata basis as X/Y x Z. Where: X = the total sum paid and payable to the Distributor pursuant to Clause 4 in the relevant Contract Year prior to the Applicable Time; Y = the number of days elapsed in the relevant Contract Year prior to the Applicable Time; and Z = 365 *Confidential treatment requested Google Confidential (c) breach of any implied condition as to title or quiet enjoyment; and (d) misuse of confidential information. 9.2 Nothing in this Agreement shall exclude or limit either party's liability under Clause 10 (Indemnities), or Distributor's liability under Clause 2 (License Grants and Restrictions), Clause 3.5 (Exclusivity), Clause 3.6 (End User License Agreement) and Clause 3.7 (Accurate Reproduction) or Clause [ * ]. 9.3 Subject to Clauses 9.1 and 9.2, neither party shall be liable under this Agreement (whether in contract, tort or
"""

Extract the exact clause related to "Warranty Duration" from the excerpt above.

assistant: Google warrants that the Distribution Products will for a period of [ * ] from the date of their supply to Distributor be free from any defect which has a materially adverse effect on their use or operation.