Ключевые слова: architecture, area, arena, audience, auditorium, background, blank, bright, business, chair, chairs, class, classroom, color, comfortable, concept, concert, conference, convention, decor, design, education, empty, event, floor, furniture, hall, idea, indoor, interior, lecture, lifestyle, meeting, modern, plastic, portable, presentation, public, room, row, school, seat, show, sit, stadium, university, vacant, venue, wall, work,