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

### Instruction:
Who was the GT2 winning team when the GT3 winning team was #1 PTG?

### Inputs:
table_name: table, columns: ['Rnd', 'Circuit', 'WSC Winning Team', 'GT1 Winning Team', 'GT2 Winning Team', 'GT3 Winning Team', 'Results']

### Response:
SELECT GT2 Winning Team FROM table WHERE GT3 Winning Team = #1 PTG