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

### Instruction:
Who was the Cover model in the issue in which the Interview subject was Joan Collins?

### Inputs:
table_name: table, columns: ['Date', 'Cover model', 'Centerfold model', 'Interview subject', 'Pictorials']

### Response:
SELECT Cover model FROM table WHERE Interview subject = joan collins