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

### Instruction:
WHICH Corrected time d:hh:mm:ss has a Position smaller than 7, and a Yacht type of cookson 50

### Inputs:
table_name: table, columns: ['Position', 'Sail number', 'Yacht', 'State/country', 'Yacht type', 'LOA (Metres)', 'Skipper', 'Corrected time d:hh:mm:ss']

### Response:
SELECT Corrected time d:hh:mm:ss FROM table WHERE Position < 7 AND Yacht type = cookson 50