Ключевые слова: architecture, audience, auditorium, background, blue, business, chair, chairs, cinema, classical, comfortable, concert, conference, convention, education, empty, entertainment, event, film, furniture, group, hall, indoor, indoors, inside, interior, lecture, light, meeting, modern, movie, nobody, opera, performance, presentation, public, red, room, row, screen, seat, seating, seats, seminar, show, sitting, stage, theater, theatre, university,