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

### Instruction:
What was the undecided with Roy Barnes at 47%?

### Inputs:
table_name: table, columns: ['Poll source', 'Dates administered', 'Roy Barnes', 'Thurbert Baker', 'DuBose Porter', 'David Poythress', 'Undecided']

### Response:
SELECT Undecided FROM table WHERE Roy Barnes = 47%