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 Licensor Marks by Licensee, Licensor shall have the right to revoke, with respect to the objectionable use, the rights granted to Licensee under this Agreement to use the Licensor Marks, and Licensee shall promptly cease using the Licensor Marks in the manner found objectionable by Licensor. 6 Source: IDEANOMICS, INC., 8-K, 11/24/2015 12. Representations and Warranties. (a) Licensor represents and warrants that: i. The execution, delivery and performance of this Agreement have been duly authorized by all necessary corporate action on the part of Licensor and this Agreement constitutes a valid and legally binding agreement of Licensor enforceable against Licensor in accordance with its terms; ii. It will not take or authorize any action, or fail to take any action, by which any of the rights in any Title granted herein may be impaired in any way; iii. It has all rights and authority necessary to fully perform its obligations and grant the rights granted under this Agreement and all rights in and to the Titles and in and to all literary, artistic, dramatic, intellectual property and musical material included therein required for the exercise of rights granted in this Agreement without liability of any kind to any third party; provided however, that this representation and warranty shall not apply to non-dramatic performing rights in music to the extent that they are controlled by SESAC, ASCAP or BMI or to the extent that such music is in the public domain; iv. Each Title is and will be protected during the Term by copyright throughout the Territory; v. There are no taxes, charges, fees, royalties or other amounts owed to any party other than as set forth in this Agreement for the exercise of rights granted in this Agreement and Licensor has paid or will pay all charges, taxes, license fees and other amounts that have been or may become owed in connection with the Titles or the exercise of any rights granted under this Agreement; vi. Licensor shall make all payments which may become due to any union or guild and to any third parties who rendered services in connection with the production of the Titles by virtue of the use made of the Titles hereunder; vii. No claim or litigation is pending or threatened and no lien, charge, restriction or encumbrance is in existence with respect to any Title that would adversely affect or impair any of the rights granted under this Agreement; viii. The Titles, Materials and Licensor Marks will not violate or infringe any common law or statutory right of any person or other entity including, without limitation, any contractual rights, proprietary rights, trademark, service mark, copyright or patent rights, or any rights of privacy or publicity; ix. The Titles, Materials and the Licensor Marks will not be unlawful, slanderous or libelous; and x. To the extent that any Title makes any claims or renders any instruction or advice, such claim, instruction or advice shall comply with all federal, state and 7 Source: IDEANOMICS, INC., 8-K, 11/24/2015 other applicable laws and regulations and shall cause no harm to any person or entity following or acting in accordance with such instruction or advice. (b) Licensee represents and warrants that: i. The execution, delivery and performance of this Agreement have been duly authorized by all necessary corporate action on the part of Licensee and this Agreement constitutes a valid and legally binding agreement of Licensee enforceable against Licensee in accordance with its terms; ii. It will use the Titles solely as permitted under this Agreement; iii. It has the full right, capacity and authority to enter into this Agreement and to perform all of its obligations hereunder; and iv. As of the Effective Date, there is no claim, action, suit, investigation or proceeding relating to or affecting Licensee pending or threatened, in law or in equity, or any other circumstance which might adversely affect Licensee's ability to perform all of its obligations hereunder. 13. Indemnification. Each party shall defend, indemnify and hold the other party and its Affiliates, and their respective directors, officers, employees, agents, successors, assigns, licensees and distributors harmless from and against any and all judgments, settlements, damages, penalties, costs and expenses (including, but not limited to, reasonable attorneys' fees) arising out of any third party claims relating to the Indemnifying Party's breach or alleged breach of any of its representations, warranties, covenants or obligations hereunder. The party seeking indemnification (the "Indemnified Party") will give prompt notice to the indemnifying party (the "Indemnifying Party") of any
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Extract the exact clause related to "Joint Ip Ownership" from the excerpt above.