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

### Instruction:
What is the episode number for "case two (part 1)"?

### Inputs:
table_name: table, columns: ['Episode', 'Title', 'Directed by', 'Written by', 'Originalairdate', 'Viewing Figures (millions) Sourced by BARB ; includes ITV1 HD and ITV1 +1']

### Response:
SELECT Episode FROM table WHERE Title = "Case Two (Part 1)"