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 best efforts to offer end users updates to its games which no longer include WPT's Licensed Property after the Term. d. Notwithstanding any termination of this Agreement, nothing herein will obligate Zynga, any users of a Zynga game that includes WPT's Licensed Property or any third party platform or distribution partners to remove from the publicly available content regarding Zynga services or any user accounts with Zynga, any of the references to user interactions, experience points, achievements, item purchases or other engagements or metrics in the Zynga game(s) that were generated prior to the expiration or termination of this Agreement. 7 Source: ALLIED ESPORTS ENTERTAINMENT, INC., 8-K, 8/15/2019 e. Notwithstanding any termination of this Agreement, any Approved Content that includes Zynga's Licensed Property may remain in perpetuity in any media in which such Licensed Property was integrated into during the Term (e.g., televised WPT Tournaments or WPT Invitational Tournaments, social media posts, repurposed integrations for "best of" television programs) or for historical purposes (e.g., reference on WPT's website that Zynga-sponsored tour events took place as part of the tour). f. Sections 1, 3-7, and 8-10 of the Additional Provisions shall survive termination or expiration of this Agreement. 8. CONFIDENTIALITY. The parties acknowledge and agree that the subject matter of this Agreement constitutes "Business Purpose" and this Agreement and any Exhibits hereunder are "Confidential Information" of the parties as defined as "Information" in the Non- Disclosure Agreement between the parties dated August 24, 2017, and accordingly the restrictions relating to confidentiality and use thereof provided in the Non-Disclosure Agreement apply to any party's Confidential Information disclosed pursuant to this Agreement. In the event of a conflict between the Non-Disclosure Agreement and this Agreement, the terms of this Agreement will govern. 9. INDEPENDENT CONTRACTORS. The parties are independent contractors with respect to each other and nothing herein shall create any association, partnership, joint venture or agency relationship between them. Neither party shall have the right to obligate or bind the other party in any manner whatsoever, and nothing herein contained shall give, or is intended to give, any rights of any kind to any third persons. 10. MISCELLANEOUS a. Insurance. Each party agrees to carry liability insurance sufficient to cover the risks posed under this Agreement. b. Counterparts. This Agreement may be executed in any number of counterparts, each of which shall be an original and all of which shall constitute together but one and the same document. c. Notices. All notices and other communications given hereunder shall be in writing and shall be sent by courier service, express mail, personal delivery or mail to the respective addresses of the parties set forth above (or at such other address as such party may designate by notice to the other party). A copy of any notice to WPT shall also be sent to WPT Enterprises, Inc., ATTN: Legal, 1920 Main Street, Suite 1150, Irvine, CA 92614. A copy of any notice to Zynga shall also be sent to Office of the General Counsel, Zynga Inc., 699 8th Street, San Francisco, CA 94103 with a copy to legalnotices@zynga.com. Notice shall be deemed given as follows: upon delivery if sent by courier service, express mail or personal delivery; and five (5) days after the date of mailing, postage prepaid, certified or registered mail if sent by mail. d. Entire Agreement. This Agreement contains the full and complete understanding between the parties hereto with respect to the license granted hereunder and supersedes all prior agreements and understandings, whether written or oral, pertaining thereto. This Agreement cannot be modified except by a written instrument signed by each party hereto. e. Waiver. No waiver of any term or condition of this Agreement shall be construed as a waiver of any other term or condition and no waiver of any default under this Agreement shall be construed as a waiver of any other default. f. Force Majeure. In the event that either party is prevented from engaging in the marketing and promotional activities in Exhibit A manufacturing, distributing or selling the Licensed Property because of any act of God; unavoidable accident; fire, epidemic; strike, lockout, or other labor dispute; war, riot or civil commotion; act of public enemy; enactment of any rule, law, order or act of government or governmental instrumentality (whether federal, state, local or foreign); or other cause beyond such party's control, and such condition continues for a period of two (2) months or more, either party hereto shall have the right to terminate this Agreement
"""

Extract the exact clause related to "Irrevocable Or Perpetual License" from the excerpt above.

assistant: Notwithstanding any termination of this Agreement, any Approved Content that includes Zynga's Licensed Property may remain in perpetuity in any media in which such Licensed Property was integrated into during the Term (e.g., televised WPT Tournaments or WPT Invitational Tournaments, social media posts, repurposed integrations for "best of" television programs) or for historical purposes (e.g., reference on WPT's website that Zynga-sponsored tour events took place as part of the tour).