ใครคือผู้ท้าชิงเมื่อผู้ชนะคือ kimio nonaga?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Who was the challenger when winner was kimio nonaga?It is not neccessary to use all the tables.
 table_23982399_12:  (challenger [ VARCHAR ] winner [ VARCHAR) ]
SELECT challenger FROM table_23982399_12 WHERE winner = "Kimio Nonaga"