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

### Instruction:
Who wrote the episode with ip03012 as the production code?

### Inputs:
table_name: table, columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code']

### Response:
SELECT Written by FROM table WHERE Production code = IP03012