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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other party. Any assignment or transfer without such consent shall be null and void. 12.2. Notice All notices or other communications required or desired to be sent to either of the parties will be invalid, unless made in writing and sent by registered or certified mail, postage prepaid, return receipt requested, or sent by recognized international courier service (e.g., Federal Express, DHL, etc.) with charges prepaid, or by facsimile or electronic mail which is subject to confirmation by letter. The address for all notices or other communications required to be sent to ARGO or YEC will be the mailing address stated on the signature page to this Agreement, or such other address as may be provided from one party to the other on at least ten (10) days prior written notice. Any such notice will be effective upon the date of receipt. 12.3. Litigation Expense If there is a default under this agreement, the defaulting party must reimburse the non-defaulting party for all costs and expenses reasonably incurred by the non-defaulting party in connection with the default, including attorney's fees. Additionally, if a suit or action is filed to enforce this agreement or with respect to this Agreement, the prevailing party is entitled to reimbursement from the other party for all costs and expenses incurred in connection with the suit or action, including reasonable attorney's fees at the trial level and on appeal. 12.4. Waiver No waiver of any provision of this Agreement may be deemed, or will constitute, a waiver or any other provision, whether or not similar, not will any waiver constitute a continuing waiver. No waiver will be binding unless executed in writing by the party making the waiver. 12.5. Applicable Law This agreement will be governed by and must be construed in accordance with the laws of the State of Israel. All disputes arising pursuant to this Agreement shall be exclusively brought in the courts of competent jurisdiction residing in Tel Aviv, Israel. 12.6. Entire Agreement This Agreement constitutes the entire agreement between the parties with regard to the matters contained herein, and may not be amended except in a writing signed by both parties. 12.7. Severability Immediately upon the execution by the parties of this Agreement, the Confidentiality and Non-Disclosure Agreement of August 25TH, 2011 by and between the parties and the Letter as of July 5t h, 2013 shall be terminated by mutual consent of the parties hereto, and become null and void. Notwithstanding the foregoing, should this Agreement be terminated or proven to be invalid, such termination or invalidation will in no way affect, impair or invalidate any other related agreement including the SPA, DA and/or the New NDA, which will be in full force and effect. In addition, any amendment, invalidity or termination of the SPA, DA and/or the New NDA respectively or divestiture of Series D-1 Convertible Preferred Shares of ARGO by YEC will not in any way affect, impair or invalidate this Agreement. 12.8. Counterparts of the Agreement This Agreement has been executed in two (2) identical copies, one (1) for each party. ARGO MEDICAL TECHNOLOGIES LTD. YASKAWA ELECTRIC CORPORATION
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Extract the exact clause related to "Competitive Restriction Exception" from the excerpt above.

assistant: Not found.