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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service to the public. - -------------------------------------------------------------------------------- Page 14 10.12 During the performance of this Agreement and for three (3) months after termination of services under this Agreement, Airspan will not offer products or services to third parties which compete with the products or services provided by Distributor under this Agreement, or otherwise use the knowledge acquired from Distributor in order to compete with Distributor its customers 10.13 The obligations of this Section 10 shall survive the expiration or termination of this Agreement. 11. SOFTWARE LICENSE. 11.1 Airspan grants Distributor, and Distributor hereby accepts, a nonexclusive, non-transferable license to use, and to sublicense as set forth below, Software provided by Airspan hereunder only on a single System or unit of Equipment, as may be applicable. No license is granted to use the Software on multiple Systems or in conjunction with Equipment furnished by a party other than Airspan, unless specifically agreed to in writing by Airspan. Software licensed under this Agreement is defined as: (a) any digital instruction sequence or control data contained on any media, including but not limited to, any magnetic-, electronic-, optical-, or organic device, and the term Software shall include any enhancement, modification, extension, part, portion or expansion thereof or implementation or downloading from network of any of the foregoing, for use exclusively on a System or a unit of Equipment; and (b) all associated documentation used to describe, maintain and use the Software. 11.2 Any Software provided to Distributor by Airspan will be treated as the exclusive property of Airspan, and Distributor will: (a) treat such Software as Confidential Information under Section 10 of this Agreement; (b) utilize such Software or any portions or aspects thereof (including any methods or concepts utilized therein) solely on Systems or Equipment provided by Airspan; (c) forthwith return to Airspan all memory media, documentation and/or other material that has been modified, updated or replaced; (d) except to the extent permitted by applicable law not modify, disassemble or decompile such Software, or reverse engineer any portion of the Software or functioning of Systems or Equipment, or permit others to do so, without Airspan's prior written consent; (e) except to the extent permitted by applicable law not reproduce or copy such Software in whole or in part except for backup and archival purposes or as otherwise permitted in writing by Airspan; (f) not perform or release benchmarks or other comparisons of the Software; and (g) not remove any trademark, tradename, copyright, notice or other proprietary notice from the Software and Distributor shall be responsible for the conservation of the same on any back-up copy of the Software. - -------------------------------------------------------------------------------- Page 15 11.3 In the event of a breach of this license by Distributor, then Airspan may, in its discretion, terminate the license with immediate effect, whereupon Distributor shall return to Airspan all Software and copies thereof within ten (10) days. 12 EXCUSABLE DELAY. Airspan shall not suffer any liability for non-performance, defective performance, or late performance under this Agreement due to causes beyond its control and without its fault or negligence such as, but not limited to, acts of God, war (including civil war), civil unrest, acts of government, fire, floods, explosions, the elements, epidemics, quarantine, restrictions, strikes, lock- outs, plant shutdown, material shortages, or delays in transportation or delays of its suppliers or subcontractors for like cause. In the event of excusable delay as defined in the preceding sentence, then Airspan, upon giving prompt written notice to Distributor, shall be excused from such performance on a day-to-day basis to the extent of such prevention, restriction, or interference (and Distributor shall likewise be excused from performance of its obligations on a day-to-day basis to the extent Distributor's obligations relate to the performance so prevented, restricted, or interfered with), provided that Airspan shall use its best endeavors to avoid or remove such causes of non-performance and both parties shall proceed to perform with dispatch whenever such causes are removed or cease to exist. 13. TERM AND TERMINATION. 13.1 This Agreement shall remain in effect for sixty (60) months from the Effective Date (the "Initial Term"). After the Initial Term, the term of the Agreement may be extended by a further period of five (5) years by mutual written agreement by the parties in the form of an amendment to this Agreement. If Distributor wishes to extend the term of the Agreement beyond the Initial Term, it must notify Airspan in writing at least six (6) months prior to then end of the Initial
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Extract the exact clause related to "Anti-Assignment" from the excerpt above.