CREATE TABLE table_77477 ("Country" CLOB, "Builder" CLOB, "Location" CLOB, "Ship" CLOB, "Class / type" CLOB)

What is the Cargo Ship located at Birkenhead?
SELECT "Ship" FROM table_77477 WHERE "Class / type" = 'cargo ship' AND "Location" = 'birkenhead'
SELECT "Ship" FROM "table_77477" WHERE "Class / type" = 'cargo ship' AND "Location" = 'birkenhead'