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:
"""
Products, Dossier and Aucta Background Intellectual Property worldwide including the Territory. 2.2 ETON, for itself and its Affiliates, hereby grants to Aucta in accordance with the terms and conditions of this Agreement, a right and license, to its trademark, including to its name and logo, that is owned or controlled by ETON or its Affiliates for Aucta (or its authorized Third Party) to make the packs, labels, and leaflets for the Products for sale in the Territory. For avoidance of doubt, ETON and its Affiliates shall remain the owner of its trademarks. 3. PRODUCT DEVELOPMENT AND REGISTRATION 3.1 Development and Registration Responsibilities. 3.1.1 At its sole cost and expense, Aucta shall be responsible and liable for all development and manufacturing activities required for the filing and approval of the Dossiers for the Products in and for the Territory, including without limitation all costs and management of any required pre-approval and post-approval clinical or other studies. 3.1.2 At its sole cost and expense, Aucta shall be responsible and liable for all regulatory activities required for the filing and approval of the Dossiers for the Products in and for the Territory. 3.1.3 Aucta shall provide to ETON all regulatory and compliance-related documents and correspondence with the FDA within five (5) Business Days after submission or receipt of such documents or correspondence with the FDA relating to the Products or Dossiers for the Products, including without limitation any oral (notes thereof) and written correspondence with FDA relating to the Products or Dossiers and any compliance-related oral (notes thereof) or written correspondence with FDA relating to the Product(s)' manufacturing facility(ies)' status or deficiencies. 5 Source: ETON PHARMACEUTICALS, INC., 10-Q, 11/14/2019 CONFIDENTIAL 3.1.4 ETON will provide commercially reasonable support on regulatory activities, when requested by Aucta and necessary for approval. 3.2 Registration Maintenance and Regulatory Responsibilities. 3.2.1 Aucta shall hold the approved Dossiers in its name and be responsible for their maintenance. Aucta will take all actions with the FDA, including paying all fees and conducting all communications with FDA or other Governmental Entities as required by Applicable Law in respect of the Dossiers, including without limitation payment of fees owed under the Prescription Drug User Fee Act, Annual Branded Prescription Drug Fees assessed under Section 9008 of the Patient Protection and Affordable Care Act (ACA), Public Law 111-148 (124 Stat. 119 (2010)), as amended by Section 1404 of the Health Care and Education Reconciliation Act of 2010 (HCERA), Public Law 111-152 (124 Stat. 1029 (2010)), or any successor laws, and preparing and filing all required reports (including adverse drug experience reports) with the appropriate Governmental Entity. 3.3 ETON's NDC Numbers. Aucta and its Affiliates shall not sell any products under ETON's or its Affiliates' names or NDC numbers. 3.4 Medical Inquires, Product Complaints and Recalls. ETON, Aucta and a designated third-party contract manufacturer shall share in the responsibility for responding to any medical inquiries or complaints about any Products or addressing any circumstances that may result in a potential recall, market withdrawal, inventory retrieval, or similar action ("Recall Event") as set forth in the Pharmacovigilance Agreement attached hereto as Exhibit B (the "Pharmacovigilance Agreement") and to be entered into by the Parties and the contract manufacturer as soon as practicable. 3.5 Competitive Products. During the Term of this Agreement, and for a period of two (2) years thereafter, Aucta shall not research, develop, manufacture, file, sell, market, or distribute more than two products containing the active ingredient Lamotrigine; nor will Aucta directly or indirectly assist any other Person or entity in carrying or any such activities. [ * * * ] 4. MANUFACTURE AND SUPPLY 4.1 ETON shall enter into a commercial supply agreement with a contract manufacturing organization and Aucta shall enter into a commercial supply agreement with an active pharmaceutical ingredient supplier within ninety (90) days from the Execution Date unless otherwise agreed to by the parties in writing. 4.2 If the terms of Aucta's commercial supply agreement with the active pharmaceutical ingredient supplier in Section 4.1 is assignable to ETON, ETON may assume the aforementioned agreement by providing written notice to Aucta, and Aucta will have seven (7) days from receipt of the notice to assign the aforementioned agreement to ETON. 6 Source: ETON PHARMACEUTICALS, INC., 10-Q, 11/14/2019 CONFIDENTIAL 5. SALES, MARKETING AND DISTRIBUTION 5.1 ETON shall be solely responsible for the Marketing of the Products and shall have sole and exclusive right to make all Marketing decisions for the Product in the Territory, including without limitation to pricing, contracting, sub-licensing,
"""

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

assistant: During the Term of this Agreement, and for a period of two (2) years thereafter, Aucta shall not research, develop, manufacture, file, sell, market, or distribute more than two products containing the active ingredient Lamotrigine; nor will Aucta directly or indirectly assist any other Person or entity in carrying or any such activities.