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

### Instruction:
If the US Open tournament had 2r in 2012, what was it in 2010?

### Inputs:
table_name: table, columns: ['Tournament', '2009', '2010', '2011', '2012']

### Response:
SELECT 2010 FROM table WHERE 2012 = 2r AND Tournament = us open