CREATE TABLE student (stuid NUMBER, lname CLOB, fname CLOB, age NUMBER, sex CLOB, major NUMBER, advisor NUMBER, city_code CLOB)
CREATE TABLE dorm_amenity (amenid NUMBER, amenity_name CLOB)
CREATE TABLE dorm (dormid NUMBER, dorm_name CLOB, student_capacity NUMBER, gender CLOB)
CREATE TABLE lives_in (stuid NUMBER, dormid NUMBER, room_number NUMBER)
CREATE TABLE has_amenity (dormid NUMBER, amenid NUMBER)

How many different genders are there in the dorms?
SELECT COUNT(DISTINCT gender) FROM dorm
SELECT COUNT(DISTINCT "gender") FROM "dorm"