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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1 EXHIBIT 10.4 LICENSING AND WEB SITE HOSTING AGREEMENT This Agreement is entered into on February 26, 1999, (the "Effective Date") by and between Mortgage Logic.com, Inc. ("Client"), with an address at Two Venture Plaza, 2 Venture, Irvine, California 92618 and TrueLink, Inc. ("TrueLink"), with an address at 3026 South Higuera, San Luis Obispo, California 93401. WHEREAS, TrueLink is in the business of (i) developing and licensing interface software (the "Interface") to third parties; (ii) providing access to credit bureau information to third parties through the Interface; and (iii) providing certain technical support and programming customization services to users of the Interface substantially similar to those specifically enumerated herein (collectively "Support Services"); and WHEREAS, TrueLink is licensed (or will be licensed) to provide access through the Interface to automated underwriting systems made available by certain third party investors or mortgage insurers (each such system is referred to hereafter as a "System", and all systems for which TrueLink is licensed to provide access are collectively referred to hereafter as the "Systems"); and WHEREAS, Client desires to obtain access (for itself and for certain of Client's correspondent broker customers) for communications with, and use of, the Interface, including credit bureau information, by transmitting information and data to and receiving information and data from the Interface and such Support Services as Client may from time-to-time specify; and WHEREAS, TrueLink is willing to provide to Client and to certain of Client's correspondent broker customers access to the Interface and various Support Services, subject to the terms and conditions of this Agreement. NOW, THEREFORE, in consideration of the mutual promises herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows: 1. DEFINITIONS. a. Browser. The term "Browser" refers to a program used to provide interactive, graphical access to sites on the World Wide Web. b. Client Content. The term "Client Content" means all text, words, names, likenesses, trademarks, logos, artwork, graphics, video, audio, HTML, JAVA or other coding, domain names, image maps, links, software applications, or other content that appear on, or are provided to TrueLink by or on behalf of Client for uploading to or downloading from, the Web Site. c. Client's Intellectual Property. The term "Client Intellectual Property" means, client's designs, customer lists, formulas, procedures, methods, apparatus, ideas, creations, improvements, works of authorship, materials, processes, inventions, techniques, data, know-how, 2 show-how, algorithms, programs, subroutines, tools, patents and patentable materials, copyrights and copyrightable materials and trade secrets. d. Credit Data. The term "Credit Data" means data of any borrower or loan applicant of Client or BNC Mortgage, Inc., or any of their affiliates, or any of their customers or brokers, provided that such data (i) consists only of raw credit data regarding the creditworthiness of such a borrower or loan applicant provided by third party credit repositories which currently consists of TransUnion Credit Information Services, Equifax Credit Information Services or Experien Information Services that is submitted, transmitted or in any way sent through the Interface and is the later of (I) the later of 31 days old from that date of receipt thereof by TrueLink or that date on which such data is "archived" pursuant to TrueLink's internal operating procedures consistently applied or (II) such date as may be agreed to between Client and Keith Guy provided that the parties acknowledge that such parties will discuss a date on which such data is similarly "archived" third party credit repositories as referred in this subparagraph (d) and (ii) is not combined, compared with or against, integrated or presented in any way with any Client Proprietary Information. e. Credit Reporting Agreement. The term "Credit Reporting Agreement" means the various agreements between TrueLink and each of TransUnion Credit Information Services, Experien Information Services and Equifax Credit Information Services pursuant to which TrueLink is provided raw credit data from time to time. f. TrueLink's Intellectual Property. The term "TrueLink Intellectual Property" means any or its intellectual property associated with the Interface, including, without limitation, designs, formulas, procedures, methods, apparatus, ideas, creations, improvements, works of authorship, materials, processes, inventions, techniques, data, know-how, show-how, algorithms, programs, subroutines, tools, patents and patentable materials, copyrights and copyrightable materials and trade secrets. g. Internet. The term "Internet" refers to the global network of computers using the TCP/IP protocol for communication. h. Web Site. The term "Web Site" refers to the World Wide Web site on which Client Content will appear. i. System Agreements. The term "System Agreements" means any agreement pursuant to
"""

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

assistant: Not found.