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:
"""
at the time of disclosure to the Recipient Party was in its possession or was independently developed by the Recipient Party (and the Recipient Party can demonstrate such by written documents dated before the time of disclosure), (iv) which disclosure is obtained by the Recipient Party from a third party which has not, either directly or indirectly, received the Information from the Disclosing Party; or (v) which disclosure is required otherwise by law, unless compelled to disclose such documents or information by judicial or administrative process. Specific Information shall not be deemed to be within the foregoing exceptions merely because such specific Information may be construed as being within broader, non- confidential information which is either in the public domain or in the possession of the Receiving Party at the time of the disclosure of such Information, nor shall a combination of features which form Information be deemed to be non-confidential merely because the individual features, without being combined, are non-confidential. In any such instance where disclosure appears to be compelled by law, the first Party will notify the other Party so that such Party may avail itself of such measures as may be available for protecting the confidentiality of such information; provided, however, that neither Party will be prohibited from using such documents and information in litigation against the other Party. C. The Parties shall cause the Operating Company and the Manufacturing Company to adhere to similar obligations of confidentiality as set forth above with respect to Information received by it from either Party. D. Unless otherwise agreed between the Parties, the provisions of this clause shall survive the termination of this Agreement and continue to be in force thereafter for a period of five (5) years. 21.5. COUNTERPARTS. This Agreement may be executed in two or more counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the same instrument. Signatures to this Agreement may be given by facsimile or other electronic transmission, and such signatures shall be fully binding on the Party sending the same. 21.6. AMENDMENT; WAIVER; HEADINGS. No waiver, modification or amendment of any provision, term, or condition of this Agreement shall be of any force or effect unless in writing and executed by each of the Parties. No usage of trade, course of dealing or performance shall modify the terms or conditions of this Agreement. The headings in this Agreement are for convenience only and shall not be deemed a part of this Agreement. 21.7. AUDITORS. The Parties will agree on the independent auditors of the Joint Venture. From time to time, each Party shall have the right to have its own internal or external auditors review the books and records of the Joint Venture. 21.8. SUPREMACY. Other than as set forth in this Agreement to the contrary, in the event of any conflict or inconsistency between the provisions of this Agreement and any other document related to the subject matter of this Agreement, which may be entered into by the Parties or between a member of any Party and the Joint Venture, from time to time, the provisions of this Agreement shall prevail in each case, unless the Parties otherwise expressly agree in writing. 21.9. TAX MATTERS. Each Party shall prepare its tax reports and returns in a manner not inconsistent with the tax reports and returns of the Operating Company, except in the case of manifest error. 21.10. GUARANTEE. Parent hereby guarantees the performance by T&L of all of its obligations hereunder. 22. DISPUTE RESOLUTION PROCEDURES; LIQUIDATION. 22.1. At any time for so long as both T&L and Igene own an interest in the Operating Company, at the request of either Party in a written notice to the other Party's appointees to the Board, the Parties agree to negotiate in good faith to resolve expeditiously any controversies, claims or disputes between the Parties that may arise from time to time under this Agreement or otherwise relating to the Joint Venture (each a "Board Dispute"). If, after a Board Dispute is addressed and recorded in the minutes in two regular quarterly Board meetings without resolution of such Board Dispute, then any such matter not so resolved shall be referred (by written notice by either Party to the other Party's general counsel and the other Party's appointees to the Board) to the Party Heads, who shall have an initial meeting with respect to such matters within ten days of the date of such referral
"""

Extract the exact clause related to "Irrevocable Or Perpetual License" from the excerpt above.

assistant: Not found.