Find the captain rank that has some captains in both Cutter and Armed schooner classes.
CREATE TABLE captain (rank VARCHAR, CLASS VARCHAR)
SELECT rank FROM captain WHERE CLASS = 'Cutter' INTERSECT SELECT rank FROM captain WHERE CLASS = 'Armed schooner'
### Context: CREATE TABLE captain (rank VARCHAR, CLASS VARCHAR) ### Question: Find the captain rank that has some captains in both Cutter and Armed schooner classes. ### Answer: SELECT rank FROM captain WHERE CLASS = 'Cutter' INTERSECT SELECT rank FROM captain WHERE CLASS = 'Armed schooner'