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 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'