CREATE TABLE table_43719 ("Race Title" CLOB, "Circuit" CLOB, "City / State" CLOB, "Date" CLOB, "Winner" CLOB, "Team" CLOB)

Who was the winner on the Amaroo Park circuit?
SELECT "Winner" FROM table_43719 WHERE "Circuit" = 'amaroo park'
SELECT "Winner" FROM "table_43719" WHERE "Circuit" = 'amaroo park'