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:
"""
(2) is subject to the efforts of Airspan that are reasonable under the circumstances to maintain its secrecy. (This "trade secret" language comes from the Uniform Trade Secrets Act.) 10.3 Distributor covenants and agrees that it will use the Confidential Information solely for the performance of services under this Agreement, and shall not disclose such Confidential Information to any other person (including Airspan employees in any other division, group, or entity), firm, or corporation. 10.4 Distributor shall use the same degree of care in safeguarding the Confidential Information as it uses for its own confidential information of like importance, but no less than reasonable care. Upon discovery of any disclosure or misuse of Confidential Information, Distributor shall endeavor to prevent any further disclosure or misuse. 10.5 All Confidential Information shall remain the property of Airspan, and such Confidential Information and all copies thereof shall promptly be returned to Airspan upon request or, at Airspan 's option, destroyed, in which case Airspan shall be notified in writing when it has been destroyed. - -------------------------------------------------------------------------------- Page 13 10.6 Nothing contained in this Agreement shall be construed as granting to or conferring upon Distributor any rights, by license or otherwise, express or implied, in Airspan's Confidential Information, other than the right to use the Confidential Information for the purpose of this Agreement. 10.7 Any copies of the Confidential Information made by Distributor shall reproduce proprietary marking and legends included therein, but the provisions of this Agreement supersede any provisions of such legends inconsistent herewith. 10.8 The terms and conditions of this Agreement shall not be disclosed by Distributor to others, except with the prior, written consent of Airspan, or as may be required by law or as necessary to establish its rights hereunder. 10.9 If, in connection with its performance, Distributor discloses to Airspan any ideas, developments, or inventions conceived or actually reduced to practice by Distributor prior to its performance hereunder, no relationship, confidential or otherwise, express or implied, is established with Airspan by the disclosure thereof. With respect to any such disclosure, no obligation of any kind is assumed by nor may be implied against Airspan, its subsidiary, or associated companies unless a formal, separate, written contract regarding the subject of disclosure is consummated by the parties, and then the obligation shall be only as expressed in the separate contract. 10.10 Distributor agrees that any breach of the provisions of this Section by Distributor or Distributor's personnel, agents, or subcontractors, or any third party providing products or services to Distributor will cause immediate and irreparable injury to Airspan and that, in the event of such breach, Airspan shall be entitled to injunctive relief and any and all other remedies available at law or in equity. 10.11 After Distributor has received Airspan's Confidential Information and know-how, it will be impossible to segregate Airspan's knowledge and know- how from other knowledge acquired independently by Distributor. Accordingly, during the performance of this Agreement and for three (3) months after termination of services under this Agreement, Distributor will not offer services to third parties which compete with the services provided by Airspan under this Agreement, or otherwise use the knowledge acquired from Airspan in order to compete with Airspan or its customers. Notwithstanding anything to the contrary above, Distributor is not precluded from any activities which concern product sectors or industries other than those that concern products or services similar to those offered by Airspan in connection with this Agreement. Nothing in this paragraph will be construed to prevent Distributor from providing service to existing customers of Distributor which would result in their interruption of 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
"""

Extract the exact clause related to "Anti-Assignment" from the excerpt above.