What is the title of the episode directed by William Webb? 
CREATE TABLE table_22078906_2 (title VARCHAR, directed_by VARCHAR)
SELECT title FROM table_22078906_2 WHERE directed_by = "William Webb"
### Context: CREATE TABLE table_22078906_2 (title VARCHAR, directed_by VARCHAR) ### Question: What is the title of the episode directed by William Webb?  ### Answer: SELECT title FROM table_22078906_2 WHERE directed_by = "William Webb"