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

### Instruction:
What is the 2nd leg that has 31-37 as the 1st leg?

### Inputs:
table_name: table, columns: ['Team 1', 'Agg.', 'Team 2', '1st leg', '2nd leg']

### Response:
SELECT 2nd leg FROM table WHERE 1st leg = 31-37