ใครคือคนขับรถ Officine Alfieri Maserati ที่มียาง P?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Who was the driver of the Officine Alfieri Maserati with a Tyre of P?It is not neccessary to use all the tables.
 table_name_21:  (driver [ VARCHAR ] tyre [ VARCHAR ] entrant [ VARCHAR) ]
SELECT driver FROM table_name_21 WHERE tyre = "p" AND entrant = "officine alfieri maserati"