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

### Instruction:
What shows for 2004 when 2005 is A, 2006 is A, tournament is US Open?

### Inputs:
table_name: table, columns: ['Tournament', '2002', '2004', '2005', '2006']

### Response:
SELECT 2004 FROM table WHERE 2005 = a AND 2006 = a AND Tournament = us open