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:
"""
or requirements on to Purchaser under its agreements with the applicable SDO. ARTICLE III REPRESENTATIONS AND WARRANTIES OF THE SELLER Except as specifically set forth in, or qualified by any matter set forth in, the disclosure schedules, dated as of the date of this IP Agreement and delivered by the Seller to the Purchaser (collectively, the "Seller IPA Disclosure Schedule") (it being agreed that the disclosure of any matter in any section or subsection in the Seller Disclosure Schedule, the Seller IPA Disclosure Schedule or the Seller EMA Disclosure Schedule shall be deemed to have been disclosed in any other section or subsection in the Seller Disclosure Schedule to which the applicability of such 27 disclosure is reasonably apparent on the face of such disclosure), the Seller represents and warrants to the Purchaser as follows: Section 3.1 Ownership. With respect to each item of Assigned IP and Acquired Company IP, respectively, such item is owned by a Seller Party or an Acquired Company, respectively, and such Seller Party or Acquired Company, respectively, has marketable title to such item. Schedules 1.1(b) and 1.1(c) of the Seller IPA Disclosure Schedule collectively set forth a complete and accurate list of all registered, issued, or applied-for Intellectual Property that constitutes Acquired Company IP and Schedules 1.1(h), 1.1(l), and 1.1(n) of the Seller IPA Disclosure Schedule collectively set forth a complete and accurate list of all registered, issued, or applied-for Intellectual Property that constitutes Assigned IP (such Acquired Company IP and Assigned IP, collectively, the "Registered Intellectual Property"). For each listed item, each of Schedule 1.1(b), 1.1(c), 1.1(h), 1.1(l), and 1.1(n) of the Seller IPA Disclosure Schedule, as applicable, indicates, as applicable, each owner of each such item of Registered Intellectual Property, the jurisdictions in which each such item of Registered Intellectual Property has been issued or registered or in which any application for such issuance or registration has been filed, the registration or application number, and the application filing or registration dates thereof. Each such item of Registered Intellectual Property is subsisting and, to the Knowledge of the Seller, valid and enforceable (except with respect to applications for Intellectual Property). A Seller Party has sufficient right, title, and interest in and to the Licensed IP to grant the licenses granted under this IP Agreement with respect thereto. Section 3.2 Encumbrances. Except as set forth on Schedule 3.2(a) of the Seller IPA Disclosure Schedule, the Transferred IP is free and clear of any Encumbrances (other than Permitted Encumbrances and obligations under applicable SDO agreements with SDOs listed on Schedule 3.8 of the Seller IPA Disclosure Schedule) and, as of the Initial Closing Date, will be fully transferable, alienable, and licensable by the Purchaser Assignees and Acquired Companies without restriction and without payment to any Person and, except as set forth on Schedule 3.2(b) of the Seller IPA Disclosure Schedule, no Person has an option to take an assignment or license of any Transferred IP. Section 3.3 Claims. Except as set forth on Schedule 3.3(a) of the Seller IPA Disclosure Schedule, (i) no Legal Proceeding is pending against any Seller Entity, (ii) no Legal Proceeding has been brought against any Seller Entity during the last three (3) years that was not resolved (other than pursuant to a settlement or license Contract), and (iii) no Claim has been threatened in writing against any Seller Entity during the last three (3) years (and, with respect to clause (B), was directed to the Seller Entities' Legal and Governmental Affairs group (including any member or representative thereof and any attorney of any of the Seller Entities) or of which any of them were aware), in each case of clauses (i) through (iii), (A) with respect to any infringement, misappropriation, or other violation, of any Intellectual Property of any Person (or any unfair competition or trade practices) by any Seller Entity in connection with an Enterprise Product (including by any making, having made, using, selling, offering for sale, importing, and otherwise disposing of an Enterprise Product or any services in connection therewith), including any unsolicited offers to license specifically directed (in whole or in part) to an Enterprise Product and directed to the Seller Entities' Legal and Governmental Affairs group (including any member or representative thereof and any attorney of any of the Seller Entities) or of which any of them were aware, unsolicited demands to license, or cease and desist letters, or 28 (B) challenging the enforceability, use, ownership, scope, or validity, of any Transferred IP (other than office actions
"""

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

assistant: Purchaser