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:
"""
use reasonable efforts to provide workarounds for, and to correct reproducible programming errors in, the Application attributable to E.piphany with a level of effort commensurate with the severity of such errors and in accordance with the terms of Section 5.3 ("Response Times"). Upon identification of any programming error, HSNS shall notify E.piphany of such error and shall provide E.piphany with information sufficient to locate and duplicate the error. 5.3 RESPONSE TIMES. PRIORITY 1: Response in under fifteen (15) minutes for instances in which the Application is down (product is unusable resulting in total disruption of use or outage of the Application). PRIORITY 2: Response in under one (1) hour during technical support desk hours for a major feature or function failure, which results in the operation of the Application being restricted. PRIORITY 3: Response in under four (4) hours during technical support desk hours for a minor feature or function failure which results in the Application not working as described in the Documentation and with minor impact on usage. PRIORITY 4: Response in under eight (8) hours during technical support desk hours for a minor problem or feature request that does not impact usability of the Application. In each instance, E.piphany will, after the initial response, within a time frame mutually agreed upon by the parties, provide HSNS with an action plan for resolution, if possible, of the error. Priority 4 errors may, in E.piphany's 2 3 discretion, be corrected by E.piphany in the next release of the Application. 5.4 SUPPORT. DESK. E.piphany allows for unlimited calls to its technical support desk by the HSNS personnel designated under Section 5.7 ("HSNS Responsibilities.") The technical support desk hours of operation are from 7:00 a.m. until 6:00 p.m. Pacific Time, Monday through Friday except holidays. During the off hours, the technical support desk can be reached via pager, twenty four (24) hours a day for Priority 1 errors. 5.5 UPDATES. E.piphany will, from time to time, provide to HSNS all applicable Updates to the Application, that are commercially released by E.piphany during the term of this Agreement. 5.6 HSNS'S RESPONSIBILITIES. As a condition to the provision of workarounds and error corrections, HSNS will (i) appoint two (2) employees to serve as primary contacts between HSNS and E.piphany, and will ensure that HSNS's support inquiries are initiated and handled through these contacts; (ii) provide E.piphany with reasonable access to all necessary personnel to provide information regarding errors or problems reported by HSNS; and (iii) provide E.piphany with Remote Access, subject to HSNS's consent. 5.7 EXCLUSIONS. E.piphany shall not be required to provide workarounds or error corrections relating to problems resulting from (i) HSNS's failure to implement all Updates to the Application which are provided under this Agreement; (ii) any alterations of, or additions to, the Application performed by parties other than E.piphany; (iii) any previous or earlier versions of the Application except for the immediately prior version of the Application; (iv) any request for additional work not falling within the scope of E.piphany's Maintenance outlined in this Section 5; or (v) interconnection of the Application with hardware or Application products not supplied by E.piphany. 5.8 SECONDARY SUPPORT TO HSNS. In the event HSNS is unable to resolve errors identified by Outsourcing Customers with respect to the Application, E.piphany shall provide Secondary Support services to HSNS at the fee set forth on Exhibit A. For the purposes of this Agreement, "SECONDARY SUPPORT SERVICES" shall mean: (a) using reasonable efforts to modify the Application to correct, fix, or circumvent errors, and modifying Documentation, as E.piphany shall deem appropriate, to respond to reported errors; (b) providing technical and functional improvements to the Application including patches to errors, changes, modifications, enhancements, and Updates, as they generally become available; and (c) providing technical support services for the Application between the hours of 7:00 a.m. to 6:00 p.m. (Pacific Time), Monday through Friday. 6. PROFESSIONAL SERVICES 6.1 SERVICES. E.piphany may from time to time perform Professional Services as may be agreed upon by the parties in an Order Form. 6.2 FEES, EXPENSES AND INVOICING. HSNS shall pay E.piphany the fees set forth in the applicable Order Form, together with reimbursement for all actual, reasonable travel and living expenses incurred by E.piphany in rendering Professional Services. E.piphany will invoice HSNS on a monthly basis for Professional Services rendered and for any applicable expense reimbursement. All Professional Services not otherwise specified in the Order Form shall be provided on a time and materials basis. 6.3 PERFORMANCE STANDARDS. E.piphany shall perform Professional
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Extract the exact clause related to "Unlimited/All-You-Can-Eat-License" from the excerpt above.

assistant: E.piphany allows for unlimited calls to its technical support desk by the HSNS personnel designated under Section 5.7 ("HSNS Responsibilities.")