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

### Instruction:
Which Paper Type has a Denomination of $0.50 and Date of Issue 4 February 2005?

### Inputs:
table_name: table, columns: ['Date of Issue', 'Denomination', 'Design', 'Paper Type', 'First Day Cover Cancellation']

### Response:
SELECT Paper Type FROM table WHERE Denomination = $0.50 AND Date of Issue = 4 february 2005