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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agreed from time to time) and shall specify: (a) Purchase Order number; (b) the type (including Product name and codes) and quantity of Products ordered; (c) the requested date of Delivery; (d) destination - ship to address; (e) the services ordered for the ordered Product; and (f) such other information as Philips may reasonably request from time to time. 4.3 No Purchase Order shall be deemed to be accepted by Philips until accepted in writing (including by email or another agreed manner of communication) by Philips or as otherwise contemplated by clause 4.4 below. Philips shall not reject any Purchase Order which is placed in accordance with the Forecast, the Lead Time and otherwise in accordance with this Agreement, unless Philips is entitled to reject on the basis of clause 3.1 or 4.4. 4.4 Philips shall confirm to Customer the receipt of each Purchase Order issued hereunder (each, a "Confirmation") within seven (7) days following Philips's receipt thereof in writing or in any other mutually agreed manner of communication (e.g., EDI or email). Each Confirmation must reference Customer's Purchase Order number, confirm acceptance of the Purchase Order, include a confirmed date of Delivery (which may differ from the requested one in the Purchase Order) or, solely if permitted under this clause 4.4, advise Customer of Philips's rejection of such Purchase Order, the date of acceptance or rejection and the basis for rejection, if applicable. If Philips commences performance under such Purchase Order, Philips will be deemed to have accepted the Purchase Order. Customer may withdraw any Purchase Order prior to Philips' acceptance thereof. Philips may only reject a Purchase Order if (a) the quantity ordered by Customer in such Purchase Order is inconsistent with the quantity in the applicable Forecast in accordance with clause 3.2 (as amended pursuant to clause 3.4), (b) Philips has sent Customer a Notice of termination pursuant to clause 12 or (c) the applicable Purchase Order includes terms and conditions that supplement those contained in this Agreement, which Philips is unwilling to accept. Philips may not cancel any previously accepted Purchase Order hereunder. Customer may not cancel a previously accepted Purchase Order . - 9 - 5. DELIVERY, TRANSFER OF RISK AND OWNERSHIP 5.1 [Redacted - Commercially Sensitive - Delivery Details] 5.2 If Customer fails to take Delivery of ordered Products at the date of Delivery acknowledged by Philips, then Philips may deliver the Products in consignment and at Customer's risk and cost. 5.3 Philips will manufacture, handle, properly pack, mark and ship the Products in accordance with Customer's instructions provided to Philips in writing as part of the Device Master Record ("DMR") or as otherwise set forth in the Quality Agreement. The purchase price for the Product includes the costs of packaging as defined in the DMR, but any additional costs resulting from compliance with non-standard packaging specifications (i.e., different from as defined in the DMR) shall be added to the Price. 5.4 [Redacted - Commercially Sensitive - Delivery Details] 6. PRICE AND PAYMENT 6.1 Prices are exclusive of any federal, state or local sales, use or excise taxes and any, value added tax imposed solely as a result of the sale and transfer of the Products (VAT). Philips will list separately on its invoice any tax lawfully applicable to the relevant Purchase Order and payable by Customer, if any, with respect to which Customer does not furnish evidence of exemption. Philips is responsible for remitting any applicable VAT, sales tax, consumption tax, or any other similar tax, in each instance, that were charged to Customer under an applicable Purchase Order, to the appropriate tax authorities in accordance with applicable Laws and required timelines. Philips will issue an invoice containing wording that will allow Customer to take advantage of any applicable "input" tax deduction. 6.2 Purchase prices for the Products are set out in Schedule 1. Prices are firm and fixed for the Term and shall include all costs for work performed, Delivery according to this Agreement and packaging as set forth in clause 5.3 above. 6.3 Any invoices provided by Philips shall refer to the Purchase Order number and any other details required by applicable Law. Philips shall invoice for the purchase prices set out in Schedule 1 on or at any time after Delivery. 6.4 Philips invoices, compliant with the requirements of this Agreement, will be payable within [Redacted - Commercially Sensitive] following the end of the month of the date of invoice. Customer shall make all payments in Euros by check, wire
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Extract the exact clause related to "Parties" from the excerpt above.