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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in the performance of its obligations under this Agreement) will be entitled without prejudice to any other rights or remedies they may have under this Agreement or at law or in equity to terminate this Agreement immediately by written notice. 5.3. If any delay in meeting the System Completion Date is in any way due to the Publishers' fault, HealthGate will nevertheless, if the Publishers so requests, continue with the work on the Project with a view to completing it as soon as reasonably possible in the circumstances, and the Development Timetable will be adjusted accordingly. 6. Project Management 6.1. HealthGate and the Publishers shall each designate the name, address, telephone number, fax number, and e-mail address of a Project Manager and a Deputy Project Manager. The Project Managers shall be responsible for arranging all meetings, visits, and consultations between the parties, and for the transmission and receipt of technical information between the parties. The parties' initial Project Manager and Deputy Project Manager is set forth on the Third Schedule hereto. 6.2. If HealthGate has reason to believe that any estimate of any time is likely to be exceeded or that it is likely that the Development Timetable will not be complied with, HealthGate will immediately inform the Publishers' Project Manager by written notice. 5 7. Content The Publishers, at their cost and expense, shall make available the Content in loadable electronic format to HealthGate as specified in the Specification. HealthGate shall remotely load the Content into a staging area. 8. Procurement of Hardware HealthGate shall maintain the Site on HealthGate's web server and/or other servers through the term of this Agreement insofar as it relates to the Services. HealthGate shall acquire and maintain all necessary equipment and hardware (collectively the "Hardware") for Site. The Hardware shall be capable of storing the Content, including future issues of the Journals within the Content. HealthGate shall replace and upgrade such Hardware to satisfy the requirements of the Specification. The Hardware for the Site shall include redundancy so that the Site may remain operational despite an equipment failure. The Hardware shall be located at HealthGate's computer facilities in Malden, Massachusetts. The Hardware may be relocated only with Publishers' written consent, which consent shall not be unreasonably withheld. HealthGate, at its cost and expense, shall maintain adequate access via telecommunications to the Site at service levels that shall be maintained at the same extent as HealthGate provides to its own users. 9. Testing, Acceptance and Delivery 9.1. Upon completion of the Development Work HealthGate and the Publishers shall run acceptance tests to assure compliance with the Specification. Load testing will be conducted at HealthGate. Such period of acceptance testing shall not exceed 2 weeks from date of delivery for testing. 9.2. Upon passing the acceptance tests, the System shall be deemed Accepted 9.3. Upon Acceptance as provided in Clause 9.2 HealthGate shall deliver into escrow the source code, source listings and information for the Proprietary Software included in the System in accordance with the terms of the Escrow Agreement. 9.4. In the event that the system fails to pass any of the prescribed acceptance tests or fails to satisfy the Publishers' requirements, the Publishers shall afford HealthGate the opportunity of rectifying, replacing and retesting the System. In the event that the System or any part thereof again fails to be accepted, such acceptance shall not be unreasonably withheld, or to satisfy the Publishers' requirements of which the Publishers shall be the sole judge, the Publishers shall (as time is of the essence of this Agreement) be entitled, in addition to any other rights it may have under this Agreement or in law, to have HealthGate remove the Content from the System (in whole or in part as the Publishers so 6 instructs) and HealthGate shall be liable to refund forthwith any moneys paid by the Publishers for such rejected System or part thereof. Notwithstanding the foregoing, upon acceptance of System launch, as noted in Clause 19.2.4, HealthGate shall be entitled to retain all monies paid by Publishers to this point. In such circumstances HealthGate shall be entitled to retain the first $250,000 paid by the Publishers to develop the Specification. 10. Licence 10.1. Proprietary Software HealthGate hereby grants to the Publishers a non-exclusive non-transferable licence to use the Proprietary Software for the purposes of this Agreement Save in relation to the Publishers' logos, trademarks, and content, HealthGate may use and/or licence the Proprietary Software for itself or for others without any compensation or liability
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Extract the exact clause related to "Source Code Escrow" from the excerpt above.

assistant: Upon Acceptance as provided in Clause 9.2 HealthGate shall deliver into escrow the source code, source listings and information for the Proprietary Software included in the System in accordance with the terms of the Escrow Agreement.