Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_18 (driver_s_ VARCHAR, crew_chief VARCHAR)
### Question:
Who is the driver that has a crew chief Gary Ritter?
### Answer:
SELECT driver_s_ FROM table_name_18 WHERE crew_chief = "gary ritter"