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:
"""
you under this Agreement, we may ask that you execute and deliver to us a confirmation (the "Confirmation of Performance"), in a form we reasonably request, confirming that we have performed those obligations. If we ask you to provide us with such a certificate, you agree to execute and deliver the Confirmation of Performance to us within three (3) business days after our request. However, if you do not reasonably believe that we have performed all of our pre-opening obligations, you must, within that same three (3) day period, provide us with written notice specifically describing the obligations that we have not performed. Not later than three (3) business days after we complete all the obligations that you specified in that notice, you agree to execute and deliver the Confirmation of Performance to us. You agree to do so even if we performed such obligations after the time performance was due under this Agreement. The term "pre-opening obligations" means the obligations we have to you under this Agreement that must be performed before the date when your Franchised Business starts its operations. 4 FEES; SALES REPORTING 4.1 Initial Franchise Fee. You agree to pay us an initial franchise fee in the amount set out in the Declarations Page attached as Exhibit A (the "Initial Franchise Fee"). The Initial Franchise Fee is not refundable in consideration of administrative and other expenses that we incur in providing you with training, carrier appointments, and pre-opening assistance as part of the initial launch of the Franchised Business. At your election, the Initial Franchise Fee is due and payable to us in one of the following ways: 4.1.1 You may pay to us the Initial Franchise Fee, in full, on the day that you sign this Agreement; or 4.1.2 You may elect to pay to us a portion of the Initial Franchise Fee on the day that you sign this Agreement in the amount set out in the Declarations Page attached as Exhibit A, and to pay to us the remaining portion of the Initial Franchise Fee, with interest, pursuant to the terms and conditions of the promissory note attached to this Agreement as Exhibit I (the "Promissory Note"). You acknowledge and agree that any default under the terms of the Promissory Note, including a failure to make any payments to us under the Promissory Note, shall be a default under this Agreement. 4.2 Royalty Fee. We will receive all Commissions (defined below) from insurance carriers. We will receive all Premiums (defined below), Policy Fees (defined below) and Agency Fees on your behalf. If the event that any Premiums, Policy Fees, or Agency Fees are received directly by you, these funds must be forwarded to us within twenty four (24) hours of receipt. We will retain Agency Fees and will forward Premiums and Policy Fees to the insurance carriers. Beginning on the date you begin operations under this Agreement, which is agreed to be the date set out in the Declarations Page (the "Commencement Date"), we will remit to you Net Revenues on a monthly basis. As used in this Agreement: 4.2.1 the term "Agency Fees" will mean fees that are charged by you for issuing a new policy pursuant to the Manual. 4.2.2 the term "Commission" will mean the total fees paid in cash to us, by insurance carriers as a percentage of the Premiums generated by insurance policies sold by the Franchised Business, on all new and renewal policies. 4.2.3 the term "Gross Revenues" means the amount of Commissions and Agency Fees received in cash, net of reversals of Commissions for policy cancellations or policy Page 6 of 80 changes and net of Agency Fee refunds, for insurance services provided by the Franchised Business; Gross Revenues will not include any Premiums or Policy Fees collected by the Franchised Business on behalf of any insurance carrier. 4.2.4 The term "Minimum Royalty" means a minimum monthly Royalty Fee payment, beginning six (6) months after the Commencement Date, in the following amounts: Number of Months following the Commencement Date Amount of Monthly Minimum Royalty Six (6) to Eighteen (18) Six Hundred Dollars ($600) Nineteen (19) and for the remainder of the term of this Agreement One Thousand Dollars ($1,000) 4.2.5 the term "Month" means a calendar month or such other four (4) to five (5) week period that we may designate (provided that there will not be more than 13 "Months" during any year); and 4.2.6 the term "Net Revenues" means Gross Revenues net of all
"""

Extract the exact clause related to "Effective Date" from the excerpt above.