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:
"""
of AT&T, its Affiliates, and third party representatives, and Vendor except under written agreement by the contracting parties. 28 Source: ATN INTERNATIONAL, INC., 10-Q, 11/8/2019 3.20 Licenses and Patents. Except as provided in Section 3.29, no license, express or implied, is granted under this Agreement to Vendor for any patent, trademark, copyright, trade secret or any other intellectual property or application therefor which is now or may hereafter be owned by AT&T or its Affiliates. 3.21 Limitation of Damages. Notwithstanding anything contained in this Agreement to the contrary, neither Party shall be liable to the other Party for any special, consequential, incidental or punitive damages, however caused, based on any theory of liability except to the extent such damages are payable by such Party (a) pursuant to its indemnification obligations under Section 3.15 and infringement indemnification obligations under Section 3.17, (b) arising out of or resulting from such Party's breach of its confidentiality obligations set forth in this Agreement (including Section 3.16, Section 3.48, Section 4.2 and Exhibit A attached hereto) or (c) in connection with a Third Party Loss arising out of or resulting from such Party's violation of applicable Law. 3.22 Offset Right. Any amounts payable (including any recoupment claims or other amounts to be reimbursed) by Vendor or its Affiliates to AT&T or its Affiliates under this Agreement (including under the Build Addendum or the Maintenance Addendum) may be offset against the Maintenance Fees or any payment due or to become due to Vendor or its Affiliates from AT&T or its Affiliates under the Transport Agreement, Master License Agreement; provided, however, that AT&T's offset right under this Section 3.22 shall not apply to any Structured Payments for any Cell Site that has reached Location Acceptance and AT&T hereby waives all such rights of setoff and recoupment against such Structured Payments. Prior to exercising its right to offset amounts pursuant to this Section 3.22, AT&T shall provide written notice to Vendor of its intention to offset such amounts and to the extent any dispute between the Parties exists in respect of the amount to be offset, AT&T must first utilize the Escalation Procedure in Section 4.8(a). 3.23 Material and Services Furnished by Vendor and AT&T. Vendor shall furnish all Services, including individuals to provide field and administrative support, and Vendor shall furnish all Material required to perform the Work, except those items specifically listed in this Agreement, the Build Addendum or the Maintenance Addendum to be furnished by AT&T. Any material provided by AT&T shall remain AT&T's material and shall be used only in connection with Work under this Agreement. Vendor shall protect and preserve AT&T's material and shall promptly return at the end of contracted Work, at Vendor's expense, any material not used, unless AT&T instructs Vendor otherwise in writing. AT&T shall receive full title and ownership rights to all Material furnished by Vendor relating to any Cell Site upon Location Acceptance of such Cell Site. 3.24 Non-Exclusive Market. Other than with respect to the Cell Sites expressly contemplated in the Build Addendum, this Agreement does not grant Vendor any right or privilege to provide to AT&T any Work of the type described in or purchased under this Agreement in any market or geographic area. Except for obligations arising under the Build Addendum or the Maintenance Addendum and any work orders or trouble tickets thereunder that have not been terminated as provided herein, this Agreement does not obligate AT&T to purchase or license any such Work from Vendor. AT&T may contract with other Proprietary and Confidential This Agreement and information contained therein is not for use or disclosure outside of AT&T, its Affiliates, and third party representatives, and Vendor except under written agreement by the contracting parties. 29 Source: ATN INTERNATIONAL, INC., 10-Q, 11/8/2019 manufacturers and vendors for the procurement or trial of Work comparable to that described in or purchased under this Agreement for sites other than the Cell Sites expressly contemplated in the Build Addendum, and AT&T may itself perform such Work. 3.25 Notice of Certain Events. Vendor shall promptly notify AT&T of any of the following which is connected with any Deliverables: (a) any material investigation, indictment, lawsuit, or administrative or other proceeding, or (b) the revocation of any license, permit or other document issued to Vendor by any governmental authority necessary for Vendor to complete its obligations as set forth herein. Prior to Location Acceptance of all Cell Sites pursuant to the Build Addendum, Vendor must notify AT&T immediately (and in any event
"""

Extract the exact clause related to "Non-Compete" from the excerpt above.

assistant: Not found.