 how many airport with rank being 4
CREATE TABLE table_13836704_9 (airport VARCHAR, rank VARCHAR)
SELECT COUNT(airport) FROM table_13836704_9 WHERE rank = 4
### Context: CREATE TABLE table_13836704_9 (airport VARCHAR, rank VARCHAR) ### Question:  how many airport with rank being 4 ### Answer: SELECT COUNT(airport) FROM table_13836704_9 WHERE rank = 4