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_18 (driver_s_ VARCHAR, crew_chief VARCHAR)

### Question ###
Who is the driver that has a crew chief Gary Ritter?

### Accurate SQL ###

SELECT driver_s_ FROM table_name_18 WHERE crew_chief = "gary ritter"