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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reports and designs as well as improvements and modifications thereof and know-how thereto (whether or not protectable by copyright, patent, trademark, trade secret or any other proprietary rights), that it makes, conceives of, discovers or develops as a result of the receipt of Confidential Information (as defined in the Confidentiality Agreement referenced in Section 6 below) ("Work Product"). Surgical agrees that all Work Product shall be the sole and exclusive property of Imprimis. 5.1. Surgical represents and warrants that all Work Product is and shall be Surgical's original work (except for material in the public domain or provided by Imprimis) and, to the best of Surgical's knowledge, does not and will not violate or infringe upon the intellectual property right or any other right whatsoever of any person, firm, corporation or other entity. 5.2. Surgical agrees that any Work Product, if subject to copyright, shall be considered a "work made for hire" within the meaning of the Copyright Act of 1976, as amended (the "Act"). If and to the extent that any Work Product is found as a matter of law not to be a "work made for hire" within the meaning of the Act, Surgical agrees to assign, and by this Agreement and Surgical's signature below, Surgical hereby does assign to Imprimis all right, title and interest in and to Work Product, and all copies thereof, and the copyright, patent, trademark, trade secret and all other proprietary rights in Work Product. 5.3. Surgical agrees that, at the request of Imprimis, Surgical will execute all such documents and perform all such acts as Imprimis or its duly authorized agents may reasonably require: (a) to effect the assignment of Work Product as agreed above; (b) to apply for, obtain, and vest in the name of Imprimis alone patents, patent applications, copyrights or other intellectual property rights in any country and (c) at Imprimis' expense, to assist Imprimis in prosecuting any such rights. Page 2 of 11 5.4. Surgical agrees that promptly upon termination of this Agreement, Surgical shall deliver to Imprimis all Work Product, either completed or uncompleted, and any documents, reports and other materials which are in Surgical's possession in connection with the performance of Services under this Agreement. 6. Confidentiality. Concurrently with this Agreement, the parties shall enter into a confidentiality agreement (the "Confidentiality Agreement"), a copy of which has been attached hereto as Exhibit A, which shall govern the confidentiality of any Confidential Information (as defined in the Confidentiality Agreement) disclosed between the parties. In addition, Surgical shall, at Imprimis' request and in Imprimis' sole discretion, if given access to patient health information, execute a "Business Associate Agreements" as required by the U.S. Health Insurance Portability and Accountability Act of 1996 ("HIPAA"). 7. Conflicts of Interest. 7.1. Surgical represents and warrants that Surgical is not under any pre-existing obligation in conflict or in any way inconsistent with the provisions of this Agreement. Surgical represents and warrants that Surgical's performance of all the terms of this Agreement will not (a) breach any agreement to keep in confidence proprietary information acquired by Surgical in confidence or in trust prior to commencement of this Agreement, or (b) breach any other agreement with any third party. Surgical warrants that Surgical has the right to disclose and/or or use all ideas, processes, techniques and other information, if any, which Surgical has gained from third parties, and which Surgical discloses to Imprimis or uses in the course of performance of this Agreement, without liability to such third parties. Surgical represents and warrants that Surgical has not granted and will not grant any rights or licenses to any intellectual property or technology that would conflict with Surgical's obligations under this Agreement. Surgical will not knowingly infringe upon any copyright, patent, trade secret or other property right of any former client, employer or third party in the performance of the Services. 7.2. Subject to the SOW, Imprimis acknowledges that Surgical may perform services for other clients. Surgical represents and warrants that as of the Effective Date, there is no conflict of interest which would prevent Surgical from performing the Services for Imprimis, and that Surgical is not under any legal or contractual relationship with any third party which is inconsistent with any provision of this Agreement. During the Term of this Agreement, Surgical will not to enter into any other agreement or arrangement that will directly or indirectly compete with the Services to be rendered hereunder, as such agreement shall be considered a breach of this
"""

Extract the exact clause related to "Rofr/Rofo/Rofn" from the excerpt above.

assistant: Not found.