อำเภอไหนอยู่ในจังหวัดปิวรา?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Which district is in the province of Piura?It is not neccessary to use all the tables.
 table_name_36:  (districts [ VARCHAR ] province [ VARCHAR) ]
SELECT districts FROM table_name_36 WHERE province = "piura"