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

### Instruction:
Which source shows Blackberry at 2.9%?

### Inputs:
table_name: table, columns: ['Source', 'Date', 'Method', 'iOS', 'Android', 'BlackBerry', 'Symbian / Series 40', 'Bada', 'Windows', 'Other']

### Response:
SELECT Source FROM table WHERE BlackBerry = 2.9%