ผู้ดำรงตำแหน่งคนใดมี District of California 5?ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which Incumbent has a District of California 5?It is not neccessary to use all the tables.
 table_name_99:  (incumbent [ VARCHAR ] district [ VARCHAR) ]
SELECT incumbent FROM table_name_99 WHERE district = "california 5"