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:
"""
behalf of Network Affiliate), the Marks, the Software, NCM's Confidential Information, the Digital Content Network, and any and all other data, information, equipment (excluding any rights to Equipment held by Network Affiliate pursuant to Article II), material, inventions, discoveries, processes, methods, technology, know-how, written works, software, works of visual art, audio works, and multimedia works provided, developed, created, reduced to practice, conceived, or made available by or on behalf of NCM to Network Affiliate or used by NCM to perform any of its obligations under or in connection with this Agreement, as well as any and all translations, improvements, adaptations, reproductions, look-and- feel attributes, and derivates thereof (collectively, the "NCM Property"), and, except as expressly and explicitly stated in this Agreement, reserves all such right, title, and interest. 26 Source: DIGITAL CINEMA DESTINATIONS CORP., S-1, 12/20/2011 Section 12.2 Derived Works. Any and all data, information, and material created, conceived, reduced to practice, or developed by or on behalf of either Party, whether alone, in connection with the other Party or any third party, including, without limitation, written works, processes, methods, inventions, discoveries, software, works of visual art, audio works, look-and-feel attributes, and multimedia works, based on, using, or derived from, in whole or in part, any NCM Property, whether or not done on NCM's facilities, with NCM's equipment, or by NCM personnel, and any and all right, title, and interest therein and thereto (including, but not limited to, the right to sue for past infringement) (collectively, "Derived Works"), shall be owned solely and exclusively by NCM, and Network Affiliate agrees to and hereby does assign, transfer, and convey to NCM (and will ensure than any third party acting with or on behalf of Network Affiliate assigns, transfers, and conveys to NCM any and all right, title, or interest in or to any Derived Work which it may at any time acquire by operation of law or otherwise. To the extent any Derived Works are included in the Service, NCM hereby grants to Network Affiliate during the Term a non-exclusive, non-transferable, non-sublicenseable license to such Derived Works solely for use in connection with the Service as expressly provided by this Agreement. The restrictions on use of the Software set forth in Section 5.2 shall apply with equal force to Network Affiliate's use of any Derived Works, and such restrictions are hereby incorporated in and made a part of this Section 12.2. Section 12.3 No Title. This Agreement is not an agreement of sale, and no title or ownership interest in or to any NCM Property is transferred to Network Affiliate as a result of or pursuant to this Agreement. Further, Network Affiliate acknowledges that its exercise of rights with respect to the NCM Property shall not create in Network Affiliate any right, title or interest in or to any NCM Property and that all exercise of rights with respect to the NCM Property and the goodwill symbolized thereby or connected therewith will inure solely to the benefit of NCM. ARTICLE XIII CONFIDENTIALITY Section 13.1 Confidential Treatment. Each party acknowledges that the other's Confidential Information contains valuable trade secret and proprietary information of that party. Each party agrees to permanently hold, and cause its personnel to hold, all Confidential Information of the other party in strict confidence, except that each party may: (i) disclose the Confidential Information of the other party that is required to be disclosed by governmental agencies, regulatory authorities, or pursuant to court order, but only to the extent such disclosure is required by law and only if such party provides prompt prior written notice to the other party of the disclosure, and (ii) subject to the terms and conditions of this Agreement, use the Confidential Information of the other party only to the extent necessary to perform its obligations under this Agreement. Except as specifically permitted by this Agreement, neither party shall duplicate or use, or permit the duplication or use of, any Confidential Information of the other party or disclose or permit the disclosure of such Confidential Information to any person or entity. Each party shall limit use, possession, and disclosure of, and shall limit access to, the Confidential Information of the other party only to those of its employees or representatives whose performance under this Agreement requires such use, possession, disclosure, or access and who have signed confidentiality and non-disclosure agreements protecting the confidentiality of the Confidential Information at least to the same extent as such information is protected under this Agreement. Any duplication, use, disclosure,
"""

Extract the exact clause related to "Joint Ip Ownership" from the excerpt above.

assistant: Any and all data, information, and material created, conceived, reduced to practice, or developed by or on behalf of either Party, whether alone, in connection with the other Party or any third party, including, without limitation, written works, processes, methods, inventions, discoveries, software, works of visual art, audio works, look-and-feel attributes, and multimedia works, based on, using, or derived from, in whole or in part, any NCM Property, whether or not done on NCM's facilities, with NCM's equipment, or by NCM personnel, and any and all right, title, and interest therein and thereto (including, but not limited to, the right to sue for past infringement) (collectively, "Derived Works"), shall be owned solely and exclusively by NCM, and Network Affiliate agrees to and hereby does assign, transfer, and convey to NCM (and will ensure than any third party acting with or on behalf of Network Affiliate assigns, transfers, and conveys to NCM any and all right, title, or interest in or to any Derived Work which it may at any time acquire by operation of law or otherwise.