CREATE TABLE table_48457 ("Year" CLOB, "Date" CLOB, "Circuit" CLOB, "Winning driver" CLOB, "Winning constructor" CLOB, "Report" CLOB)

Who was the winning driver in 1956?
SELECT "Winning driver" FROM table_48457 WHERE "Year" = '1956'
SELECT "Winning driver" FROM "table_48457" WHERE "Year" = '1956'