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:
"""
shall visually inspect the Products and the appropriate documents, and employ good receiving/delivering procedures, verification of the Products to confirm origin, identity, quantity, labeled storage conditions, integrity of the packaging as well as any other inspection, as may be required by applicable laws or regulations. Reseller shall ensure that the Products are delivered with appropriate information and documentation, and shall not make any changes to the Products or to the packaging or labeling thereof, or to the legal documents included in the Products' packages, without Supplier's prior written consent (subject to the right of the Reseller to make changes to such materials as are described in Section 2.4). Reseller shall ensure traceability of the delivered Products. Defective Products; Warranty; Support ***. During the Term Supplier may extend an offer to Reseller for a Returns Discount Program, whereby the Supplier will rebate a percentage of the cost of goods sold in lieu of accepting End-User returns. In the event no Returns Discount Program has been entered into by the Parties, Supplier will not accept Returned Product, except for cases of Defective Products. ***. ***. Intellectual Property Supplier shall retain all its rights and title to and ownership of all intellectual property rights in the Products including, inter alia, all documentation, enhancements, improvements or other modifications made thereof (including those modifications made in connection with Section 3.1 above), and except as expressly provided in this Agreement, Reseller shall have no right, title, or interest in any intellectual property rights in the Products. Nothing in this Section shall limit the rights of the Reseller in or to any modifications made to the Software in accordance with Section 2.3. Reseller shall: (a) not do or omit to do, nor authorize any third party to do or omit to do, any act or omission that would or might invalidate or be inconsistent with any of Supplier's intellectual property rights; (b) promptly notify Supplier of any actual, threatened, or suspected infringement of any of Supplier's intellectual property rights that comes to Reseller's notice; and (c) at Supplier's request and expense, do all such things as may be reasonably required to assist Supplier in taking or resisting any proceedings in relation to any such infringement or claim. Confidential Information. Each Party agrees that it will maintain the confidentiality of all electronic, oral, and written communications from the other Party which should reasonably be regarded in the normal commercial view, as constituting confidential information, trade secrets or proprietary information ("Confidential Information") and use such Confidential Information only as necessary to exercise a Party's rights or perform a Party's obligations under this Agreement. Each Party shall: (i) safeguard and keep secret all Confidential Information, and will not directly or indirectly disclose to any third party the Confidential Information without written permission of the other; and (ii) in performing its obligations hereunder, use at least the same degree of care as it does with respect to its own confidential information of like importance but, in any event, at least reasonable care. Any information related to the Products shall be considered the Supplier's Confidential Information. If either Party becomes legally obliged to make disclosure of the other Party's Confidential Information, that Party shall immediately notify the first Party and reasonably cooperate with the first Party in any efforts to limit or object to the disclosure. 3.3. 4. 4.1. 4.2. 4.3. 4.4. 5. 5.1. 5.2. 6. 6.1. 6.2. 6.3. 6.4. 7. 7.1. 7.2. 8. Source: HEALTHCARE INTEGRATED TECHNOLOGIES INC., 8-K, 8/12/2019 Disclaimer of Warranties. UNLESS SPECIFIED OTHERWISE HEREIN (INCLUDING BUT NOT LIMITED TO THE BACK TO BACK WARRANTY SPECIFIED IN SECTION 6.5) AND WITHOUT LIMITATION TO ANY WARRANTY WHICH SUPPLIER MAY, IN ITS SOLE DISCRETION, MAKE TO ANY CUSTOMER AND/OR END USER, THE PRODUCTS ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, AND SUPPLIER DOES NOT MAKE ANY WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCTS OR ITS OPERATION THEREOF, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Limitation of Liability TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL SUPPLIER BE LIABLE UNDER, OR OTHERWISE IN CONNECTION WITH, THIS AGREEMENT FOR: (A) ANY CONSEQUENTIAL, INDIRECT, SPECIAL, INCIDENTAL, OR PUNITIVE DAMAGES; (B) ANY LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF REVENUE, OR LOSS OF ANTICIPATED SAVINGS; (C) ANY LOSS OF, OR DAMAGE TO, DATA, REPUTATION, OR GOODWILL; AND/OR (D) THE COST OF PROCURING ANY SUBSTITUTE GOODS OR SERVICES. THE AGGREGATE LIABILITY OF SUPPLIER UNDER, OR IN CONNECTION WITH, THIS AGREEMENT SHALL BE EQUAL TO THE LESSER
"""

Extract the exact clause related to "Covenant Not To Sue" from the excerpt above.

assistant: Not found.