Sun Life Stadium มีสถานที่กี่แห่ง?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many locations have the Sun Life Stadium?It is not neccessary to use all the tables.
 table_15647838_3:  (location [ VARCHAR ] stadium [ VARCHAR) ]
SELECT COUNT(location) FROM table_15647838_3 WHERE stadium = "Sun Life stadium"