ใครคือผู้ชนะในสนามแข่ง Amaroo Park?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Who was the winner on the Amaroo Park circuit?It is not neccessary to use all the tables.
 table_name_38:  (winner [ VARCHAR ] circuit [ VARCHAR) ]
SELECT winner FROM table_name_38 WHERE circuit = "amaroo park"