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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Worldwide Interbank Financial Telecommunication; "Taxe(s)" mean any and all present or future fees (including license, recording, documentation and registration fees), taxes [including income taxes, gross receipts taxes, capital taxes, franchise taxes, net worth taxes, gross profits taxes, sales taxes, rental taxes, use taxes, turnover taxes, value added taxes, ad valorem taxes, property taxes (tangible and intangible), excise taxes, customs or import duty, documentary and stamp taxes], licenses, levies, imposts, duties, charges, assessments or withholdings of any nature whatsoever, whether now existing or hereafter adopted, enacted or amended, howsoever imposed, levied or asserted by any Government Entity or taxing authority together with any and all penalties, fines, additions to tax and interest thereon; "TBO" stands for Time Between Overhaul and means the FH or CY elapsed between two (2) consecutive overhauls; "Term" means the period of time starting from the Signing Date and ending on the End Date; AZUL-ATR Global Maintenance Master Agreement DS/CS-3957/14/Issue 7 Page 13/110 Source: AZUL SA, F-1/A, 3/3/2017 Execution version "Time and Material" means any sale of goods and services, not covered by the scope of this Agreement and charged to the Company, which is subject to the "ATR General Terms and Conditions for the Sale of Goods and Services"; "TNR" or "Technically Non Reparable" means where an unserviceable Item (i) is not repairable according to ATA 100 and/or (ii) for which no technical repair can be considered; "TSN" or "Time Since New" means the FH elapsed since new; "TSO" or "Time Since Overhaul" means the FH elapsed since the last overhaul; "US Dollar" or "$" designates the legal currency of the United States of America; "Vendor Warranty Manual" means the manual giving details of the warranties granted by an OEM with respect to certain parts of Aircraft, provided by the said OEM; "Week" means a period of seven (7) Days; "Work Order" means any order issued by the Company to the Repairer for any of the Services and being one of the forms set out in Exhibit 7 ("[Repairer standard Work Order forms"), as applicable. 2.2 In this Agreement, save as otherwise expressly indicated to the contrary, any reference to: 2.2.1 this Agreement or any other agreement or document shall be construed as a reference to this Agreement or such other agreement ordocument as amended, novated or supplemented from time to time; any reference to this Agreement includes its Exhibits; and, 2.2.2 any Clause shall be construed as a reference to a clause of this Agreement and/or of an Exhibit to this Agreement, as relevant; and, 2.2.3 any Exhibit shall be construed as a reference to an Exhibit to this Agreement; and, 2.2.4 Headings: Clauses and Exhibits headings and sub-headings are used in this Agreement only for the ease of reading. They are notintended to affect its meaning and should not be used for the sake of its construction; and, 2.2.5 "including"shall be construed as a reference to "… including, without limitation,…" or "… including but not limited to…"; and, 2.2.6 Singular and plural: wherever the context so requires, the singular shall include the plural and vice versa; and, 2.2.7 a date will be by reference to the Gregorian calendar; and, 2.2.8 "in writing" includes any modes of reproducing words in a legible and non-transitory form but does not include e-mail (but caninclude the copy "PDF" of any document sent AZUL-ATR Global Maintenance Master Agreement DS/CS-3957/14/Issue 7 Page 14/110 Source: AZUL SA, F-1/A, 3/3/2017 Execution version CONFIDENTIAL TREATMENT REQUESTED by e-mail); and, 3. DURATION AND RENEWAL 3.1 The Agreement enters into force on the Signing Date; it will have a duration of [*****] as from the Start Date (the "Initial Term"). 3.2 Upon expiry of the Initial Term, this Agreement [*****] unless a Notice of non-renewal is given by either Party to the other Party [*****] prior to the expiry of the Initial Term or the end of a renewal period, if any. 3.3 The Agreement shall end on the End Date without any further action, unless otherwise provided under this Agreement. 4. EXCUSABLE DELAY 4.1 If a Party (the "Affected Party") is prevented, hindered or delayed from or in performing any of its obligations under this Agreement by an event which is unpredictable and unavoidable, including war or civil or foreign armed aggression, riots, fires, floods, explosions, earthquakes or accidents, epidemics or quarantine restrictions, any act of a Government Entity, embargoes, export prohibitions, failure by a subcontractor and/or vendor to furnish supplies or parts or delay the same, strikes or labour troubles causing cessation of
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Extract the exact clause related to "Expiration Date" from the excerpt above.

assistant: The Agreement enters into force on the Signing Date; it will have a duration of [*****] as from the Start Date (the "Initial Term").