Alison Maclean กำกับกี่ตอน?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many episodes did Alison Maclean direct?It is not neccessary to use all the tables.
 table_17624965_1:  (written_by [ VARCHAR ] directed_by [ VARCHAR) ]
SELECT COUNT(written_by) FROM table_17624965_1 WHERE directed_by = "Alison Maclean"