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

### Instruction:
The episode with production code 693-002, has how many original airdates?

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

### Response:
SELECT COUNT Original airdate FROM table WHERE Production code = 693-002