CREATE TABLE table_name_21 (winning_driver VARCHAR2, fastest_lap VARCHAR2, race VARCHAR2)

Who was the winning driver of the British Grand Prix where Giuseppe Farina had the fastest lap?
SELECT winning_driver FROM table_name_21 WHERE fastest_lap = "giuseppe farina" AND race = "british grand prix"
SELECT "winning_driver" FROM "table_name_21" WHERE "british grand prix" = "race" AND "fastest_lap" = "giuseppe farina"