CREATE TABLE table_56477 ("Race" TEXT, "Circuit" TEXT, "Date" TEXT, "Pole position" TEXT, "Fastest lap" TEXT, "Winning driver" TEXT, "Constructor" TEXT, "Tyre" TEXT, "Report" TEXT)

What is the fastest lap of the race where Giuseppe Farina was the winning driver?
SELECT "Fastest lap" FROM table_56477 WHERE "Winning driver" = 'giuseppe farina'
SELECT "Fastest lap" FROM "table_56477" WHERE "Winning driver" = 'giuseppe farina'