Assume that you are to design a database for Railway system database. Your first take is to organize the information about all the trains that are stationed and maintained at the station. The relevant information is as follow: 1- Every train has a unique id (train_id) and a unique name (train_name). also, the type of the train (train_type) and the available classes (avail_class) must be recorded. 2- Each train has a status. Train status is identified by its status id (status_id) for each train. And has wait_seat, available_seat, booked_seats, which must be recorded. 3- Each train has a rout. Departure time (Depart_time), arrival time (arriv_time) and stop number (stop_no) must be recorded. 4- Each train starts and ends at a specific station. Train station has unique id (station_id) and a unique name (station_name). Also, a train station consists of several routes. 5- Users help passengers to book one or more train status. The date of booking (date) must be recorded. Each user is identified by id (user_id), and has password (password) and security quest (security_quest). 6- A passenger is identified by PNR. Passenger name (p_name), age, gender, seat number (seat_no), and reservation status (reserve_status) must be recorded. Draw an E-R diagram that captures the above information