CREATE TABLE Apartment_Facilities (facility_code VARCHAR(255), apt_id VARCHAR(255)); CREATE TABLE Apartments (apt_id VARCHAR(255), bedroom_count INTEGER)
Show the facility codes of apartments with more than 4 bedrooms.
    
SQL: SELECT T1.facility_code FROM Apartment_Facilities AS T1 JOIN Apartments AS T2 ON T1.apt_id = T2.apt_id WHERE T2.bedroom_count > 4