结构推理 Dear Sirs,
   Reference to your letter dated March 1,2008 and our letter dated March 15,2008,we confirm having sold you：
   Description-green tea made in Fujian,China
   Quantity-6 tons
   Price-＄100 per kilo,CIF
   Containers-double sacks,free
   Port-Yangkou Port,Shanghai
   Shipment-promptly
   Payment-by an irrevocable bank credit usable against surrendering of the shipping documents in London(credit to be opened by airmail)
   Insurance-marine insurance to be covered by us
   Claim No claim can be entertained unless made within 10 days of arrival of goods at the port of destination.
   Other Conditions-We agree to settlement of disputes by arbitration,
                                           Yours sincerely,
                                                 ZhuKang