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

### Instruction:
What is the 2004 that has a of grand slam tournaments in2006 ?

### Inputs:
table_name: table, columns: ['Tournament', '2004', '2005', '2006', '2007']

### Response:
SELECT 2004 FROM table WHERE 2006 = grand slam tournaments