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

### Instruction:
When 13 is the share (18-49) what is the rank (timeslot)?

### Inputs:
table_name: table, columns: ['Episode', 'First Air Date', 'Rating (18–49)', 'Share (18–49)', 'Viewers (millions)', 'Rank (timeslot)']

### Response:
SELECT Rank (timeslot) FROM table WHERE Share (18–49) = 13