In this menu we can find tables for events, event types, auditoriums, auditorium types, auditorium
parts, genres.
Events are happenings for which tickets are sold. They can be (according to the event type)
films, plays, concerts, etc.
Auditoriums are halls which have seating and standing capacity. They are defined by their ID,
name, capacity, and parts. Auditorium parts can represent stalls, balconies, boxes...
Genres define the events more closely. If they are plays or films, genres can be: comedies,
dramas, musicals, ...
