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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constitutes IGER INTELLECTUAL PROPERTY, where the genotype exists before the Effective Date of the CA, no further breeding or selection is required after the Effective Date of the CA, and the LICENSED VARIETY is propagated by rhizomes; (b) [[***] x%] of LICENSE INCOME if the LICENSED VARIETY constitutes IGER INTELLECTUAL PROPERTY, in all cases not included in Article 4.2.2 (a); or (c) [[***] x%] of LICENSE INCOME if the LICENSED VARIETY constitutes JOINT INTELLECTUAL PROPERTY. CERES-IGER Collaboration Agreement Page 61 of 75 4.3 In addition to the royalty provided in Article 4.2, CERES agrees to pay a royalty on NET SALES of the LICENSED VARIETY equal to the royalty due, on the basis of the Convention on Biological Diversity, by IGER to the country or countries where the material on which the LICENSED VARIETY is based has been collected, up to a maximum of [***] percent ([***]%) of NET SALES, and an equivalent additional royalty on LICENSE INCOME to be determined. 4.4 Where any royalty payments are subject to a withholding tax, CERES shall pay the net royalty and shall provide to IGER proper certificates for such withholding tax. 4.5 All sums payable by CERES to IGER under this Agreement shall be payable in United States dollars. Royalties shall be payable by March 31 of each year with respect to the NET SALES and LICENSE INCOME received by CERES and any AFFILIATED COMPANIES in the preceding calendar year. Payments shall be made by check to the following address: Institute Secretary Institute of Grassland and Environmental Research Plas Gogerddan Aberystwyth Ceredigion SY23 3EB United Kingdom Such payments shall be accompanied by a written report setting forth the production volumes and sales by CERES, and each SUBLICENSEE, of COMMERCIAL PROPAGULES during the calendar year, permitted exclusions, NET SALES, LICENSE INCOME and the royalties due. 4.6 Payments required under this Agreement shall, if overdue, bear interest at a per annum rate of one percent (1%) above the prime interest rate in effect on the due date, as reported in the Wall Street Journal, from the date the payment is due until it is received. 5.1 The Parties acknowledge that the denomination for the subject variety is established as: [X]. 5.2 CERES shall use the denomination of the LICENSED VARIETY to identify that variety. 5.3 CERES will determine a COMMERCIAL NAME for the LICENSED VARIETY under which the COMMERCIAL PROPAGULES of the LICENSED VARIETY will be marketed and sold. 5.4 CERES may determine TRADEMARK(s) associated or intended for use with a LICENSED VARIETY. CERES shall be the owner of all rights in any such TRADEMARK, chosen, applied to, used or registered in association with the LICENSED VARIETY. Confidential Treatment Requested and the Redacted Material has been filed separately field with the Commission 5. DENOMINATIONS, VARIETY NAMES, TRADE MARKS. CERES-IGER Collaboration Agreement Page 62 of 75 6.1 CERES shall be responsible for multiplying propagating material of the LICENSED VARIETY within the TERRITORY and using commercially reasonable efforts to produce, market and sell the resultant COMMERCIAL PROPAGULES so as to ensure that COMMERCIAL PROPAGULES of the LICENSED VARIETY are commercially available in the United States and/or Europe in reasonable quantities and at a reasonable price no later than [X years — depends on propagation] from the Effective Date. 6.2 CERES shall meet its own cost of promotion, trials and listing of the LICENSED VARIETY in the TERRITORY. 6.3 CERES shall use reasonable endeavors to ensure that all COMMERCIAL PROPAGULES of the LICENSED VARIETY offered for sale by CERES, any AFFILIATED COMPANY or SUBLICENSEE shall meet the normally accepted standards of the propagule trade or certifying authorities relating to propagule quality within the relevant jurisdiction of the TERRITORY. 6.4 CERES shall at all times comply with and abide by any governing law, rules, regulations, plant variety rights legislation or the like and/or requirements relating to the quality and sale of COMMERCIAL PROPAGULES of the LICENSED VARIETY in the relevant jurisdictions of the TERRITORY and shall use all reasonable commercial endeavors to obtain any necessary regulatory approvals for the LICENSED VARIETY. 7.1 CERES will use commercially reasonable efforts to actively market the LICENSED VARIETY in the United States, and in CERES' discretion, in other jurisdictions in the TERRITORY, wherein such efforts shall be appropriately reflected in the MARKETING PLAN. 7.2 This provision shall apply after the third (3rd) anniversary of the market introduction of the LICENSED VARIETY in the United States propagated by a method that results in the LICENSED VARIETY being commercially competitive as compared to other
"""

Extract the exact clause related to "Revenue/Profit Sharing" from the excerpt above.

assistant: In addition to the royalty provided in Article 4.2, CERES agrees to pay a royalty on NET SALES of the LICENSED VARIETY equal to the royalty due, on the basis of the Convention on Biological Diversity, by IGER to the country or countries where the material on which the LICENSED VARIETY is based has been collected, up to a maximum of [***] percent ([***]%) of NET SALES, and an equivalent additional royalty on LICENSE INCOME to be determined.