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:
"""
the CDx Assays. 3.5 Samples, Handling and Disposal 3.5.1 Samples Roche will provide samples to FMI that meet the FMI specimen requirements attached hereto as Appendix 3.5.1 and in accordance with the applicable R&D Plan. FMI shall not transfer the Samples or other materials obtained or received in connection with this Agreement, or any derivatives thereof, to any Third Party without Roche's prior written approval. FMI shall use the Samples and material obtained or received in connection with this Agreement solely for the performance of activities permitted under this Agreement in FMI's laboratories under suitable containment conditions in accordance with all Applicable Law. FMI shall not analyze the Samples other than as expressly provided for in this Agreement. FMI may use such Samples in accordance with the applicable R&D Plan without any obligation of compensation to the subjects from whom such Samples were obtained or any other Third Party for the intellectual property associated with, or any use of, such Samples. ***Confidential Treatment Requested*** - 29 - 3.5.2 Sample Handling and Disposal All Samples provided to FMI by or on behalf of Roche shall have been collected or shall be collected, handled, and transferred in compliance with Applicable Law and any applicable policies of any institutional review board, privacy board, or ethics committee with jurisdiction over the collection, handling, and transfer of such material or information. Upon termination of the Agreement or the Work Stream requiring the use of the Samples, or upon completion of those activities requiring use of the Samples, FMI shall promptly return to Roche unused or remaining Samples, or, at FMI's option, securely dispose of all unused or remaining Samples and provide Roche with a written notice of such disposal. Roche has authorization and all consents required for FMI to use the Samples in accordance with the R&D Plans and the Agreement. FMI shall use, store and handle all Samples in accordance with the R&D Plans and all Applicable Laws. In the event of withdrawal of a subject's consent, Roche will promptly notify FMI and FMI will destroy the corresponding unused Samples (as documented by written confirmation) or return such Samples to Roche for destruction. 3.6 Records; Reports; Audits 3.6.1 Progress Reports At least […***…] during the time a Work Stream remains in effect, unless otherwise agreed by the Parties, FMI shall have the obligation to prepare and provide to the JRDC a summary presentation on the progress of the work performed by FMI in the course of each Work Stream during the preceding […***…]. Promptly upon expiry of such Work Stream, other than the Molecular Information Platform Program, FMI shall provide a final written report summarizing its activities under such Work Stream and the results thereof. 3.6.2 Research Records Each Party shall maintain records of each Work Stream (or cause such records to be maintained), except Roche shall not have such obligation for the Molecular Information Platform Program, in sufficient detail and in good scientific manner as will properly reflect all work done and results achieved by or on behalf of such Party in the performance of such Work Stream. All laboratory notebooks shall be maintained for no less than the term of any Patent Rights issuing therefrom. In addition, during the Agreement and for […***…] thereafter, FMI shall maintain all data provided to FMI by Roche, the Genomic Results, the FMI Advanced Genomic Analysis Results, Database Insights Database Query Results, and documentation necessary to demonstrate FMI's compliance with the terms of this Agreement, including computerized records and files, in a secure area reasonably protected from fire, theft and destruction; provided, however, that with respect to raw genomic data, FMI shall only be required to retain the original, unprocessed BAM file generated from its sequencing process and no other raw genomic data or intermediate BAM files created in processing to generate the Results. 3.6.3 Regulatory Inspections and Audit Roche shall be entitled, upon reasonable notice and during FMI's regular business hours, to visit FMI's facility (and those facilities of its subcontractors), including FMI's CLIA-compliant ***Confidential Treatment Requested*** - 30 - facilities, to audit for quality assurance purposes its facilities, documentation and procedures used in conducting its activities pursuant to this Agreement. Such audits may be conducted up to […***…] and Roche shall use reasonable effort not to disrupt ongoing operations during such audits. FMI shall provide Roche with prompt notice of any governmental or regulatory review, audit or inspection of any of its facilities involved in the development of the Molecular Information Platform, Immunotherapy Testing
"""

Extract the exact clause related to "Post-Termination Services" from the excerpt above.

assistant: Upon termination of the Agreement or the Work Stream requiring the use of the Samples, or upon completion of those activities requiring use of the Samples, FMI shall promptly return to Roche unused or remaining Samples, or, at FMI's option, securely dispose of all unused or remaining Samples and provide Roche with a written notice of such disposal.