Which class has a city of Richmond, Virginia?
CREATE TABLE table_name_20 (class VARCHAR, city_of_license VARCHAR)
SELECT class FROM table_name_20 WHERE city_of_license = "richmond, virginia"
### Context: CREATE TABLE table_name_20 (class VARCHAR, city_of_license VARCHAR) ### Question: Which class has a city of Richmond, Virginia? ### Answer: SELECT class FROM table_name_20 WHERE city_of_license = "richmond, virginia"