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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Unit. II. LICENSE CONDITION PRECEDENT: THE GRANTING OF ANY AND ALL LICENSES OR PRIVILEGES HEREIN IS SUBJECT THE THE SUCCESSFUL COMPLETION OF A FIVE PERSON MINIMUM CLINICAL TRIAL IN THE KINGDOM OF SAUDI ARABIA TREATING EARLY ONSET PATIENTS INFECTED WITH MERS. A. Subject to the condition above, HEMISPHERX hereby grants SCIEN the exclusive license to sell, market, and distribute Product for use in the Field in the Territory for Direct Access/EAP and Regulatory Agency-Approved (RAA) purposes. B. SCIEN shall not use HEMISPHERX Intellectual Property nor sell nor permit the sale of any products that use the HEMISPHERX Intellectual Property outside the Territory or knowingly sell or have sold any products that use the HEMISPHERX Intellectual Property to any party in or outside the Territory for export or sale outside the Territory, without HEMISPHERX's prior written consent. C. SCIEN will have six 6) months after the date of this Agreement to Purchase at least 50 vials to be used by the MOH in treating patients with MERS. Scien will thereafter, based on the outcome of the initial treatment for MERS by the MOH trial, aggressively promote to all stakeholders in Saudi Arabia and the other GCC states("First Performance Milestone"). III. COMMERCIAL DEVELOPMENT A. HEMISPHERX has or will provide SCIEN: 1. As an Integral Part of this Agreement and in order for HEMISPHERX to ship Product to SCIEN, the letter with attachments (Exhibit 1) must be signed by an officer of SCIEN. A protocol is also provided (Exhibit 2). 2. All the appropriate information about Products that will assist with the education of physicians about the Product in the Territory. 3. Ongoing scientific and medical support. 4. Product Units in quantities sufficient for SCIEN's Direct Access/EAP and RAA commercial needs in the Territory, subject to availability from HEMISPHERX. {***} Confidential portions of this exhibit have been redacted and filed separately with the Commission pursuant to a confidential treatment request in accordance with Rule 24b-2 of the Securities Exchange Act of 1934, as amended. Page 2 of 28 B. SCIEN will: 1. Within 60 days after this Agreement becomes effective, prepare and provide a Business Plan, to be attached to this Agreement as Exhibit 3, to make aware and educate physicians and patients about Product both prior to and following approval of Product. 2. Assist in determining reimbursable End User pricing of Product and gain reimbursement for Product under Direct Access/EAP program and RAA sales of the Product in the Territory. 3. Assist physicians who desire to administer Product with the required paperwork under any Direct Access/EAP program. 4. Manage the logistics within the Territory from arrival to End User supply. 6. Assist HEMISPHERX to gain regulatory approval of Product in the Field in the Territory 7. Prepare and provide a 3-year post regulatory approval Sales, Marketing, and Distribution Plan including a 3-year minimum sale forecast and a committed-dollar field sales force, product manager and marketing budget to be agreed by both Parties and a non-binding 12 month Product forecast no later than six (6) months prior to the anticipated registration and subsequent launch date for each Product, also to be agreed by both parties, 8. Pay for all the above Sales Marketing and Distribution activities and related expenses. 9. Hold 3 months inventory of the forecasted sales once the product is registered. 10. If needed, assist in recruiting clinical trial sites and principal investigators in the Field in the Territory. 11. Provide HEMISPHERX a monthly written report of SCIEN's efforts and status thereof under this Agreement. IV. SUPPLY A. Subject to the terms and conditions of this Agreement, HEMISPHERX agrees to exclusively supply Product to SCIEN in the Territory with a minimum expiry of 6 months from the date of shipment. B. The price that SCIEN will pay for Product under this Agreement is the Transfer Price, CIF. Taxes, duties, and other expenses to be paid by SCIEN. C. SCIEN shall pay HEMISPHERX for each order of Product within 75 days after receipt of the goods except for the for first purchase order which will be for 50 vials of Interferon alfa-n3 (human leukocyte derived) ("First Order") and paid once the MOH approves the use for Interferon alfa-n3 (human leukocyte derived) on 5 MERS patients. All purchase orders are final. D. SCIEN will ensure all necessary QA testing / approval for use occurs in the Territory and that each Product is stored under the conditions stipulated in a Quality Agreement (QA) to be executed and appended to this Agreement as Exhibit 4.
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Extract the exact clause related to "Covenant Not To Sue" from the excerpt above.