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:
"""
non-sub-licensable (except as set forth in this Paragraph 7.01(a)) right and license to practice Program Results solely to conduct research and development for the Program. More particularly, said right and license to practice includes the right to use, reproduce, and create derivative works of Program Information under applicable copyrights and to make, use, and import (but not sell or offer to sell) under the claims of Program Patents, in each case solely for research and development for the Program. Said right and license may be extended to contractors performing work on behalf of FCE but is not otherwise sub-licensable. Page 7 of 31 Source: FUELCELL ENERGY INC, 8-K, 11/6/2019 (b) FCE's Commercial Rights. ExxonMobil agrees to grant or hereby grants FCE the following rights and licenses: (1) Power Applications and Hydrogen Applications. ExxonMobil grants FCE a worldwide, non-exclusive, royalty-free, perpetual, irrevocable (except as stated in Paragraphs 12.03 (Failure to Perform), 12.04 (Other Termination), and 12.05 (Bankruptcy)), sub-licensable, non-transferable (except pursuant to Article 14 (Assignment)), right and license to practice Program Results solely for Power Applications and Hydrogen Applications. More particularly, said right and license to practice Program Results solely for Power Applications and Hydrogen Applications includes the right to use, reproduce, and create derivative works of Program Information under applicable copyrights and to make, use, import, and sell or offer to sell under the claims of Program Patents; and (2) Carbon Capture Applications. In the event ExxonMobil notifies FCE that it has formally decided not to pursue Generation 2 Technology for Carbon Capture Applications, then upon FCE's written request, ExxonMobil agrees to negotiate a grant to FCE, under commercially reasonable terms to be determined in good faith, a worldwide, non-exclusive, royalty-bearing (with the royalty to be negotiated), non-sub- licensable (except as set forth in this Paragraph 7.01(b)(2)), non-transferable (except pursuant to Article 14 (Assignment)), right and license to practice Program Results solely for Carbon Capture Applications. More particularly, said right and license to practice Program Results solely for Hydrogen Applications and Carbon Capture Applications will include the right to use, reproduce, and creative derivative works of Program Information under applicable copyrights and to make, use, import, and sell or offer to sell under the claims of Program Patents. Said right and license will be extendable to contractors performing work on behalf of FCE but will not otherwise sub-licensable. Nothing in this Paragraph 7.01(b)(2) will create an obligation on the part of ExxonMobil to grant FCE a right or license under Program Results if the Parties do not agree on the terms and conditions of such license. ARTICLE 8 - LICENSE TO BACKGROUND INFORMATION AND PATENTS 8.01 Ownership Retained. Each Party will retain its title and ownership rights to its Background Information and Background Patents in all applicable jurisdictions. 8.02 Grant of Rights to Background Information and Background Patents. (a) Grant to ExxonMobil. 1) Carbon Capture Applications and Hydrogen Applications. To the extent not already granted pursuant to the License Agreement, FCE grants ExxonMobil and its Affiliates a worldwide, non-exclusive, royalty-free, irrevocable, perpetual, sub-licensable, non-transferable (except pursuant to Article 14 (Assignment)) right and license to practice FCE Background Information and FCE Background Patents for Generation 2 Technology in Carbon Capture Applications and Hydrogen Applications. More particularly, said right and license to practice FCE Background Information and FCE Background Patents for Generation 2 Technology in Carbon Capture Applications and Hydrogen Applications includes the right to use, reproduce, and create derivative works of FCE Background Information under applicable copyrights and the right to make, use, import, and sell or offer to sell under the claims of FCE Background Patents. Page 8 of 31 Source: FUELCELL ENERGY INC, 8-K, 11/6/2019 2) Other Applications. In the event FCE notifies ExxonMobil that it has formally decided not to pursue Generation 2 Technology for Power Applications, then upon ExxonMobil's written request, FCE agrees to negotiate a grant to ExxonMobil and its Affiliates, under commercially reasonable terms to be determined in good faith, a worldwide, royalty-bearing (with the royalty to be negotiated), non-exclusive, sub-licensable right and license to practice FCE Background Information and FCE Background Patents for Generation 2 Technology in any application outside of Carbon Capture Applications and Hydrogen Applications. More particularly, said right and license to practice FCE Background Information and FCE Background Patents for Generation 2 Technology in any application outside of Carbon Capture Applications and Hydrogen Applications will include the right to use, reproduce, and create derivative works of FCE Background Information under applicable copyrights and the right to make, use, import, and sell
"""

Extract the exact clause related to "Volume Restriction" from the excerpt above.

assistant: Not found.