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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the meanings given such terms under Section 13(d) and 14(d) of the United States Securities Exchange Act of 1934 and the term "group" includes any group acting for the purpose of acquiring, holding or disposing of securities within the meaning of Rule 13d-5(b)(1) under the said Act; (b) a "beneficial owner" shall be determined in accordance with Rule 13d-3 under the aforesaid Act; and (c) the terms "beneficially owned" and "beneficially own" shall have meanings correlative to that of "beneficial owner." 1.32 [***] 1.33 "Clinical Data" means [***] Information with respect to any Licensed Compound or Licensed Product and made, collected, or otherwise generated under or in connection with Clinical Studies, including any data (including raw data), reports, and results with respect thereto. 1.34 "Clinical Studies" means Phase 0, Phase I, Phase II, Phase III, and such other tests and studies in human subjects that are required by Applicable Law, or otherwise recommended by the Regulatory Authorities, to obtain or maintain Regulatory Approvals for a Licensed Product for one (1) or more indications, including tests or studies that are intended to expand the Product Labeling for such Licensed Product with respect to such indication. 1.35 "CMC" has the meaning set forth in the definition of "Initial Development Plan." 1.36 "CMC Working Group" has the meaning set forth in Section 2.5. 1.37 "Combination Product" means a Licensed Product that is: (a) sold in the form of a combination product containing both a Licensed Compound and one (1) or more other therapeutically active pharmaceutical or biologic products; or (b) sold in a form that contains (or is sold bundled with) any (i) diagnostic product or (ii) other product that is administered separately from the Licensed Product, in both cases (subclauses (a) and (b)) sold as a unit at a single price and excluding any Delivery System. 1.38 "Commercialization" means any and all activities directed to the preparation for sale of, offering for sale of, or sale of a Licensed Compound or Licensed Product, including activities related to marketing, promoting, distributing, importing and exporting such Licensed Compound or Licensed Product, and interacting with Regulatory Authorities regarding any of the foregoing. When used as a verb, "to Commercialize" and "Commercializing" means to engage in Commercialization, and "Commercialized" has a corresponding meaning. 1.39 "Commercially Reasonable Efforts" means with respect to [***]. - 4 - Source: HARPOON THERAPEUTICS, INC., 10-K, 3/12/2020 1.40 [***] 1.41 "Competitor" means any Person that [***], or (b) that [***]. 1.42 "Confidential Information" means any Information provided orally, visually, in writing or other form by or on behalf of one (1) Party (or an Affiliate or representative of such Party) to the other Party (or to an Affiliate or representative of such other Party) in connection with this Agreement, whether prior to, on, or after the Effective Date, including Information relating to the terms of this Agreement, the Licensed Compound or any Licensed Product (including the Regulatory Documentation and regulatory data), any Exploitation of the Licensed Compound or any Licensed Product, any know-how with respect thereto developed by or on behalf of the disclosing Party or its Affiliates, or the scientific, regulatory or business affairs or other activities of either Party. Notwithstanding the foregoing, (a) Joint Know-How shall be deemed to be the Confidential Information of both Parties, and both Parties shall be deemed to be the receiving Party and the disclosing Party with respect thereto, and (b) following the License Option Exercise Closing Date, all Regulatory Documentation owned by AbbVie pursuant to Section 3.8.2 shall be deemed to be the Confidential Information of AbbVie, and AbbVie shall be deemed to be the disclosing Party and Harpoon shall be deemed to be the receiving Party with respect thereto. In addition, all information disclosed by Harpoon to AbbVie under the Prior NDA shall be deemed to be Harpoon's Confidential Information disclosed hereunder, and all information disclosed by AbbVie Inc. to Harpoon under the Prior NDA shall be deemed to be AbbVie's Confidential Information disclosed hereunder. - 5 - Source: HARPOON THERAPEUTICS, INC., 10-K, 3/12/2020 1.43 "Control" means, with respect to any item of Information, Regulatory Documentation, material, Patent, or other property right, the possession of the right, whether directly or indirectly, and whether by ownership, license or otherwise (other than by operation of the license and other grants in Sections 5.1 or 5.2), to grant a license, sublicense or other right (including the right to reference Regulatory Documentation) to or under such Information, Regulatory Documentation, material, Patent, or other property right as provided
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Extract the exact clause related to "Irrevocable Or Perpetual License" from the excerpt above.