CREATE TABLE table_15847 ("Order Year" CLOB, "Manufacturer" CLOB, "Model" CLOB, "Fleet Series  ( Quantity ) " CLOB, "Powertrain  ( Engine/Transmission ) " CLOB, "Fuel Propulsion" CLOB)

who is the manufacturer for the order year 1998?
SELECT "Manufacturer" FROM table_15847 WHERE "Order Year" = '1998'
SELECT "Manufacturer" FROM "table_15847" WHERE "Order Year" = '1998'