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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assessment excluding any taxes imposed upon the net income of either party). Subject to the express provisions of this Agreement, the parties will cooperate and use their commercially reasonable efforts to minimize or avoid, to the maximum extent allowed by law, the obligation to pay any Sales Taxes that may be levied on payments made under this Agreement or otherwise are chargeable by any applicable government authority with respect to the Services. 4.7 Tax Withholding. If laws, rules or regulations require withholding of any taxes imposed upon amounts payable to a party hereunder, the other party shall make such withholding payments as required and subtract such withholding payments from the amounts payable to such party. The other party shall submit reasonable proof of payment of the 11 withholding taxes to such party within 30 days after obtaining such proof. The parties agree to fully cooperate with each other, including, without limitation, in the filing of appropriate certificates of tax exemption, to ensure that any withholding payments required to be made by the other party are reduced or avoided to the fullest extent permitted by law. Converge shall be deemed to be the sole payor of payments owed to VNE under this Agreement and shall not have the right to substitute any domestic or foreign affiliate for that purpose, and if Converge reincorporates or otherwise reorganizes as a foreign person that would thereupon cause payments hereunder to VNE to become subject to withholding, then Converge shall comply with applicable laws to the extent required and shall gross up the payments otherwise owed to VNE so that VNE receives, net of withholding taxes, the amounts VNE would have received if Converge had not substituted a foreign person or had remained a domestic person. 5. Warranty. 5.1 Services Warranty. VNE warrants that the Services provided hereunder will be provided in accordance with generally-accepted industry standards applicable to the performance of services of a similar nature. In the event of any breach of the foregoing warranty, and provided that Converge reports such breach to VNE in writing within 90 days following the date of performance of the Services in question, VNE shall, as its sole obligation and Converge's sole and exclusive remedy, promptly repair, replace or re-perform the Services in question, without additional cost to Converge, so as to correct the warranty non-compliance as promptly as practicable (within 30 days to the extent technically feasible). 5.2 Disclaimer. WITH THE EXCEPTION OF THE EXPRESS WARRANTY PROVIDED IN SECTION 5.1 AND AS THE PARTIES MAY OTHERWISE AGREE IN ANY WORK PLAN, VNI AND ALL AFFILIATES OF VNI SPECIFICALLY DISCLAIM ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, ACCURACY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS RELATING TO ANY SERVICES, MAINTENANCE UPDATES OR ENHANCEMENTS PROVIDED OR TO BE PROVIDED HEREUNDER. 6. Limitation of Liability. 6.1 Disclaimer of Liability for Certain Damages. 6.1.1 Consequential and Similar Damages. TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL EITHER PARTY BE LIABLE OR OBLIGATED IN ANY MANNER FOR ANY SPECIAL, INCIDENTAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES OF ANY KIND ARISING OUT OF OR RELATING TO THIS AGREEMENT (INCLUDING, BUT NOT LIMITED TO, LOST PROFITS, REVENUES OR BUSINESS OPPORTUNITIES) HOWEVER CAUSED AND REGARDLESS OF THE FORM OF ACTION, WHETHER IN CONTRACT, TORT, NEGLIGENCE, STRICT PRODUCT LIABILITY, OR OTHERWISE, EVEN IF THE PARTY HAS BEEN INFORMED OF THE POSSIBILITY OF ANY SUCH DAMAGES IN ADVANCE. The foregoing limitation 12 is independent of any exclusive remedies available to either party under this Agreement, including any failure of such remedies. 6.1.2 Loss of Data, Usage, Etc. VERT DOES NOT GUARANTEE THAT ANY MAINTENANCE UPDATES OR ENHANCEMENTS WILL OPERATE WITHOUT ERROR OR INTERRUPTION AND VERT SHALL NOT BE RESPONSIBLE FOR ANY DAMAGES ASSOCIATED WITH LOSS OF DATA OR INTERRUPTION OR LOSS OF USE OF ANY PRODUCTS, MAINTENANCE UPDATES OR ENHANCEMENTS RESULTING THEREFROM. 6.2 Sole Remedy. IF A CLAIM OR CAUSE OF ACTION IS ATTRIBUTABLE TO ANY MAINTENANCE UPDATE, ENHANCEMENT OR SERVICES PROVIDED OR TO BE PROVIDED UNDER THIS AGREEMENT, THE REMEDIES SET FORTH IN THIS AGREEMENT, TO THE EXCLUSION OF THE REMEDIES SET FORTH IN THE SUBSCRIPTION LICENSE AGREEMENT, SHALL CONSTITUTE THE SOLE AND EXCLUSIVE REMEDIES AVAILABLE TO A PARTY FOR SUCH CLAIM OR CAUSE OF ACTION. IF A CLAIM OR CAUSE OF ACTION IS ATTRIBUTABLE TO A PRODUCT OR ANY SERVICES PROVIDED UNDER THE SUBSCRIPTION LICENSE AGREEMENT, THE REMEDIES SET FORTH IN THE SUBSCRIPTION LICENSE AGREEMENT, TO THE EXCLUSION
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Extract the exact clause related to "Warranty Duration" from the excerpt above.

assistant: In the event of any breach of the foregoing warranty, and provided that Converge reports such breach to VNE in writing within 90 days following the date of performance of the Services in question, VNE shall, as its sole obligation and Converge's sole and exclusive remedy, promptly repair, replace or re-perform the Services in question, without additional cost to Converge, so as to correct the warranty non-compliance as promptly as practicable (within 30 days to the extent technically feasible).