Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Who was the director of the episode "graduation day: class of 2105"?

### Inputs:
table_name: table, columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written By', 'Originalairdate', 'TV Broadcast']

### Response:
SELECT Directed by FROM table WHERE Title = "Graduation Day: Class of 2105"