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

### Instruction:
What Aggregate has a 2-1 1st leg, and is from Belgrano?

### Inputs:
table_name: table, columns: ['Home (1st leg)', 'Home (2nd leg)', '1st Leg', '2nd leg', 'Aggregate']

### Response:
SELECT Aggregate FROM table WHERE 1st Leg = 2-1 AND Home (1st leg) = belgrano