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:
"""
including the Exploitation of the Licensed Compound or Licensed Products in the Territory. 1.137 "Regulatory Documentation" means all (a) applications (including all INDs and Drug Approval Applications and other Major Regulatory Filings), registrations, licenses, authorizations, and approvals (including Regulatory Approvals), (b) correspondence and reports submitted to or received from Regulatory Authorities (including minutes and official contact reports relating to any communications with any Regulatory Authority) and all supporting documents with respect thereto, including all regulatory drug lists, advertising and promotion documents, adverse event files, and complaint files, and (c) Clinical Data and data contained or relied upon in any of the foregoing, in each case ((a), (b), and (c)) to the extent relating to a Licensed Compound or Licensed Product. 1.138 "Regulatory Exclusivity" means, with respect to any country or other jurisdiction in the Territory, an additional market protection, other than Patent protection, granted by a Regulatory Authority in such country or other jurisdiction which confers an exclusive Commercialization period during which AbbVie or its Affiliates or Sublicensees has the exclusive right to market and sell, and any unauthorized Third Party is prevented from marketing or selling, a Licensed Compound or Licensed Product in such country or other jurisdiction. 1.139 "Royalty Term" means, with respect to each Licensed Product and each country or other jurisdiction in the Territory, the period beginning on the date of the First Commercial Sale of such Licensed Product in such country or other jurisdiction, and ending on the latest to occur of (a) the expiration, invalidation or abandonment date of the last Harpoon Patent (i)[***] in such country or other jurisdiction; or (ii) [***] in such country or other jurisdiction; (b) the expiration of Regulatory Exclusivity in such country or other jurisdiction for such Licensed Product; or (c) the [***] of the First Commercial Sale of such Licensed Product in such country or other jurisdiction. 1.140 "Segregate" means, with respect to a [***] relating to such [***] relating to the [***] provided that, [***] in connection [***]. - 16 - Source: HARPOON THERAPEUTICS, INC., 10-K, 3/12/2020 1.141 "Senior Officer" means, with respect to Harpoon, its [***], and with respect to AbbVie, its [***]. 1.142 "Sublicensee" means a Person, other than an Affiliate or a Distributor, that is granted a sublicense by AbbVie or its Affiliate under the grants in Section 5.1 as provided in Section 5.3 but excluding any sublicense granted by AbbVie or its Affiliate as a result of settlement of patent litigation with respect to a Biosimilar Product. 1.143 "Term" has the meaning set forth in Section 12.1.1. 1.144 "Terminated Territory" means each Major Market with respect to which this Agreement is terminated by Harpoon pursuant to Section 12.2.2, each country with respect to which this Agreement is terminated by AbbVie pursuant to Section 12.3, or if this Agreement is terminated in its entirety, the entire Territory. 1.145 "Territory" means the entire world. 1.146 "Third Party" means any Person other than Harpoon, AbbVie and their respective Affiliates. 1.147 "Third Party Claims" has the meaning set forth in Section 11.1. 1.148 "Third Party Provider" has the meaning set forth in Section 3.7. 1.149 "Trademark" means any word, name, symbol, color, designation or device or any combination thereof that functions as a source identifier, including any trademark, trade dress, brand mark, service mark, trade name, brand name, logo, business symbol or domain name, whether or not registered. 1.150 "United States" or "U.S." means the United States of America and its territories and possessions (including the District of Columbia and Puerto Rico). 1.151 "Valid Claim" means (a) a claim of any [***] Patent whose validity, enforceability, or patentability has not been rendered invalid by any of the following: (i) irretrievable lapse, abandonment, revocation, dedication to the public, or disclaimer; or (ii) a holding, finding, or decision of invalidity, unenforceability, or non-patentability by a court, governmental agency, national or regional patent office, or other appropriate body that has competent jurisdiction, such holding, finding, or decision being final and unappealable or unappealed within the time allowed for appeal, or (b) a claim in a Patent application that is filed and prosecuted in good faith and no more than [***] have lapsed from its earliest priority date. For clarity, (A) any claim in a Patent application, for which more than [***] have lapsed from its earliest priority date, shall not be considered a Valid Claim unless and until such claim is granted and meets the requirement of subclause (a) and (B) a holding, finding, or decision being final and
"""

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