เหตุใด Robert L. Bacon (r) จึงลาออก?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Why did Robert L. Bacon (r) vacate?It is not neccessary to use all the tables.
 table_2159547_3:  (reason_for_change [ VARCHAR ] vacator [ VARCHAR) ]
SELECT reason_for_change FROM table_2159547_3 WHERE vacator = "Robert L. Bacon (R)"