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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the extent the same is attributable to the failure of Converge to comply in any material respect with its obligations under this Agreement or any Work Plan or Final SOW. 3.9 Method of Delivery. VNE will transfer to Converge all Converge-Requested Enhancements to Converge, and any associated&bbsp;Documentation, by remote telecommunications from the VNE place of business, to a Converge computer located at a Converge place of business in the Commonwealth of Massachusetts, if any. If any such Converge-Requested Enhancement and/or associated Documentation cannot be delivered via remote telecommunications to a Converge computer located at a Converge place of business in the Commonwealth of Massachusetts, such Enhancement and/or Documentation will be installed by VNE on a Converge computer located at a Converge place of business in the Commonwealth of Massachusetts, if any. Converge will not obtain title or possession of any tangible personal property, including any storage media, as a result of the delivery of any Converge-Requested Enhancement or associated Documentation under this Agreement. 3.10 Acceptance. Each Converge-Requested Enhancement provided to Converge under a Final SOW will be subject to acceptance testing by Converge in accordance with the provisions of its corresponding Final SOW. All other Converge-Requested Enhancements provided to Converge under this Agreement will be deemed accepted by 8 Converge upon Converge's receipt of the complete delivery thereof to a Converge computer located at a Converge place of business. 3.11 Ownership; License to Vert. Unless otherwise expressly stated in an applicable Work Plan or Final SOW, Vert shall be the sole and exclusive owner of all Converge-Requested Enhancements, but excluding any portions thereof that are or were developed independently by Converge or its Affiliates ("Converge-Independent Materials") and any portions thereof that are Converge Brand Features or Third-Party Materials. Except as the parties may otherwise agree in writing, Converge, to the extent it has the legal right to do so, hereby grants to Vert an irrevocable, perpetual, world-wide, non-exclusive right and license to use, load, store, transmit, execute, copy, market, distribute, in any medium or distribution technology whatsoever, known or unknown, display, perform and sublicense the Converge-Independent Materials and the Third-Party Materials, in both Source Code and Object Code formats, and to make unlimited instantiations thereof, for any and all purposes. As used herein, "Converge Brand Features" means all logos, trademarks, service marks and trade names, brand names and other brand features of Converge and its licensors (other than Vert). As used herein, "Third-Party Materials" means any products or materials of third parties (including Converge's licensors and third-party contractors) to be incorporated into or provided as part of any Converge-Requested Enhancement. Converge shall use reasonable efforts to identify to VNE all relevant Third-Party Materials in the applicable Work Plan or Final SOW. 3.12 License Rights of Converge. The scope of Converge's license rights to each Converge-Requested Enhancement shall be as set forth in the Subscription License Agreement and, if relevant, the applicable Final SOW. Except as may be set forth in the Subscription License Agreement or as the parties may otherwise expressly agree in writing, Converge acknowledges and agrees that Vert has no obligation to deliver Source Code for any Converge-Requested Enhancement, or to grant Converge any license to use the Source Code form of any Converge-Requested Enhancement. 3.13 Installation and Configuration. Converge shall be responsible for installing and configuring any Converge-Requested Enhancements provided by VNE hereunder. Converge may request, and VNE will provide, reasonable assistance to Converge in its efforts to install and configure such Enhancements as part of the Professional Services provided hereunder. 3.14 Third-Party Technology. Except as the parties may otherwise expressly agree in writing, Converge shall be responsible for paying for and, with VNE's assistance, securing license rights to any third-party technology required for the provision or use of any Converge-Requested Enhancements provided under this Agreement. Vert shall use reasonable efforts to identify to Converge all required license rights to third-party technology in the applicable Work Plan or Final SOW. 3.15 Unforseen Costs and Expenses. Notwithstanding anything to the contrary in this Section 3, neither party shall be obligated to incur any costs or expenses in connection with the performance or implementation of a Work Plan or Final SOW unless such Work Plan or Final SOW reasonably contemplates that such party shall be responsible for such costs or expenses, or such party otherwise agrees in writing to incur such costs and expenses. 9 3.16 Escalation Procedures. Should the Converge Project Manager and the VNE Project Manager be unable to reach agreement on any matter within the scope
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Extract the exact clause related to "Irrevocable Or Perpetual License" from the excerpt above.

assistant: Except as the parties may otherwise agree in writing, Converge, to the extent it has the legal right to do so, hereby grants to Vert an irrevocable, perpetual, world-wide, non-exclusive right and license to use, load, store, transmit, execute, copy, market, distribute, in any medium or distribution technology whatsoever, known or unknown, display, perform and sublicense the Converge-Independent Materials and the Third-Party Materials, in both Source Code and Object Code formats, and to make unlimited instantiations thereof, for any and all purposes.