ผู้ชนะคนใดมี Challenge Loser of gisel?ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which winner has a Challenge Loser of gisel?It is not neccessary to use all the tables.
 table_name_19:  (challenge_winner [ VARCHAR ] challenge_loser [ VARCHAR) ]
SELECT challenge_winner FROM table_name_19 WHERE challenge_loser = "gisel"