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

### Instruction:
Who the GM winning team when the EP winning team was #37 Porsche?

### Inputs:
table_name: table, columns: ['Rnd', 'Circuit', 'AP Winning Team', 'BP Winning Team', 'CM Winning Team', 'CP Winning Team', 'DM Winning Team', 'DP Winning Team', 'EM Winning Team', 'EP Winning Team', 'FM Winning Team', 'FP Winning Team', 'GM Winning Team', 'GP Winning Team', 'HM Winning Team', 'HP Winning Team', 'Results']

### Response:
SELECT GM Winning Team FROM table WHERE EP Winning Team = #37 Porsche