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

### Instruction:
What is the target with an approval date of 2006?

### Inputs:
table_name: table, columns: ['Antibody', 'Brand name', 'Approval date', 'Type', 'Target', 'Approved treatment(s)']

### Response:
SELECT Target FROM table WHERE Approval date = 2006