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_90 ( location VARCHAR, call_sign VARCHAR )

### Question ###
Which Location has a Call sign of cjtw-fm?

### Accurate SQL ###

SELECT location FROM table_name_90 WHERE call_sign = "cjtw-fm"