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

### Instruction:
What's the type for the brand herceptin with an approval date of before 2006?

### Inputs:
table_name: table, columns: ['Antibody', 'Brand name', 'Approval date', 'Type', 'Target']

### Response:
SELECT Type FROM table WHERE Approval date < 2006 AND Brand name = herceptin