What is the total shipment by "cargo transport 5" cost of all purchase orders created on 12/14/2011?
Catgo Transport 5 is a name of shipping method; OrderDate = '2011-12-14'; total shipment cost = SUM(Freight);
SELECT SUM(t2.freight) FROM ShipMethod AS t1 INNER JOIN PurchaseOrderHeader AS t2 ON t1.shipmethodid = t2.shipmethodid WHERE t1.name = 'cargo transport 5' AND t2.orderdate = '2011-12-14'