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

### Instruction:
What was the gtu winning team when the gto winning team was #48 greenwood racing?

### Inputs:
table_name: table, columns: ['Rnd', 'Circuit', 'GTO Winning Team', 'GTU Winning Team', 'TO Winning Team', 'TU Winning Team', 'Results']

### Response:
SELECT GTU Winning Team FROM table WHERE GTO Winning Team = #48 Greenwood Racing