SELECT amenity_name FROM dorm_amenity ORDER BY amenity_name
List in alphabetic order all different amenities.
[Schema (values) (types)]: | dorm_1 |  Student : stuid (text) , lname (number) , fname (text) , age (text) , sex (number) , major (text) , advisor (number) , city_code (number) | Dorm : dormid (text) , dorm_name (number) , student_capacity (text) , gender (text) | Dorm_amenity : amenid (text) , amenity_name (number) | Has_amenity : dormid (text) , amenid (number) | Lives_in : stuid (text) , dormid (number) , room_number (text);