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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and to Shared Library Materials and Foundational Software. "Licensed SpinCo Intellectual Property" means all Licensed SpinCo Know-How and, to the extent licensed by SpinCo hereunder, SpinCo's right, title and interest in and to Shared Library Materials and Foundational Software. "Master Separation Agreement" has the meaning set forth in the recitals. "Nuclear Design Materials" has the meaning set forth in Section 4.4. "Notifying Party" has the meaning set forth in Section 4.4. 2 "RemainCo" has the meaning set forth in the recitals. "RemainCo Core Field" has the meaning set forth on Schedule 1.1(e). "RemainCo House Marks" means all Trademarks that incorporate "BWX," "BWX Technologies," or "BWXT," and any translations or derivatives thereof and any terms of a confusingly similar nature, and all goodwill embodied in the foregoing, including, without limitation, all Trademarks set forth on Schedule 1.1(p), but expressly excluding "Babcock," "Wilcox," "Babcock and Wilcox," "Babcock & Wilcox," B&W," or "B&W & HERO ENGINE DESIGN." "RemainCo Know-How" means all Know-How owned by RemainCo as of the Effective Date. "RemainCo Trademarks" has the meaning set forth in Section 3.4. "Reviewing Party" has the meaning set forth in Section 4.4. "Shared Library Materials" means (i) proprietary research reports, letter reports, photographs, micrographs or other materials recorded in a tangible, microfilm, microfiche, and/or electronic form or media, or a combination thereof, which may contain trade secrets, know-how, methods, techniques, formulas, drawings, sketches or other proprietary materials reduced to tangible form, and which were developed by and/or contained in the Research & Development Division library at the former Alliance Research Center in Alliance, Ohio ("Research Documents") and (ii) publicly available books, textbooks, reference manuals, periodicals, journals or other publications that were located at the Research & Development Division library at the former Alliance Research Center in Alliance, Ohio ("Reference Materials"), in each case which are presently stored in certain identified vaults and storage accounts maintained with Third Party vendor document retention vendor Iron Mountain. "Specific RemainCo Field" has the meaning set forth on Schedule 1.1(i). "Specific SpinCo Field" has the meaning set forth on Schedule 1.1(i). "SpinCo" has the meaning set forth in the recitals. "SpinCo Core Field" has the meaning set forth on Schedule 1.1(e). "SpinCo House Marks" means all Trademarks that incorporate "Babcock," "Wilcox," "Babcock and Wilcox," "Babcock & Wilcox," "B&W," or "B&W & HERO ENGINE DESIGN" and any translations or derivatives thereof and any terms of a confusingly similar nature, and all goodwill embodied in the foregoing, including, without limitation, all Trademarks set forth on Schedule 1.1(o), but expressly excluding "BWX Technologies," "BWXT" and "BWX". "SpinCo Know-How" means all Know-How owned by SpinCo as of the Effective Date. "SpinCo Trademarks" has the meaning set forth in Section 3.1(a). 3 "Steam Book" has the meaning set forth in Section 2.8. Section 1.2 Interpretation. In this Agreement, unless the context clearly indicates otherwise: (a) words used in the singular include the plural and words used in the plural include the singular; (b) if a word or phrase is defined in this Agreement, its other grammatical forms, as used in this Agreement, shall have a corresponding meaning; (c) reference to any gender includes the other gender and the neuter; (d) the words "include," "includes" and "including" shall be deemed to be followed by the words "without limitation"; (e) the words "shall" and "will" are used interchangeably and have the same meaning; (f) the word "or" shall have the inclusive meaning represented by the phrase "and/or"; (g) relative to the determination of any period of time, "from" means "from and including," "to" means "to but excluding" and "through" means "through and including"; (h) all references to a specific time of day in this Agreement shall be based upon Eastern Standard Time or Eastern Daylight Savings Time, as applicable, on the date in question; (i) whenever this Agreement refers to a number of days, such number shall refer to calendar days unless Business Days are specified; (j) reference to any Article, Section or Schedule means such Article or Section of, or such Schedule to, this Agreement, as the case may be, and references in any Section or definition to any clause means such clause of such Section or definition; (k) the words "this Agreement," "herein," "hereunder," "hereof," "hereto" and words of similar import shall be deemed references to this Agreement as a whole and not to any particular Section or other provision of this Agreement; (l) the term "commercially reasonable efforts" means efforts which are commercially reasonable to enable a Party, directly or indirectly, to satisfy a
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Extract the exact clause related to "Ip Ownership Assignment" from the excerpt above.