ผู้เสนอญัตติสำคัญคนใดมีโมเดล rs-18?ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which prime mover had a Model of rs-18?It is not neccessary to use all the tables.
 table_name_61:  (prime_mover [ VARCHAR ] model [ VARCHAR) ]
SELECT prime_mover FROM table_name_61 WHERE model = "rs-18"