Ключевые слова: audience, auditorium, chairs, classroom, conference hall, congress, convention centre, corporate, culture, discussion, education, empty chair, event, group, indoor, information, interior, lecture, light, manager, modern color, no, nobody, palace, pattern, people, perspective, presentation, professional, projector, public, reserved, row, school building, seat, seating, section, seminar, show, sit, studying, training, university, vacant, venue, view, watching, workshop,