Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_5 ( type VARCHAR, approval_date VARCHAR, brand_name VARCHAR )

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

### Accurate SQL ###

SELECT type FROM table_name_5 WHERE approval_date < 2006 AND brand_name = "herceptin"