โรงเรียนนิสิตในไพน์เฮเวนมีอำนาจอะไร?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What authority is the coed school in pinehaven?It is not neccessary to use all the tables.
 table_71491:  "Name" [ text]  "Years" [ text]  "Gender" [ text]  "Area" [ text]  "Authority" [ text]  "Decile" [ text] 
SELECT "Authority" FROM table_71491 WHERE "Gender" = 'coed' AND "Area" = 'pinehaven'