Ключевые слова: arena, audience, auditorium, bench, business, ceremony, chair, chairs, cinema, concept, concert, conference, congress, design, empty, event, furniture, game, geometric, gray, group, line, many, meeting, modern, nobody, outdoor, outside, pattern, performance, perspective, place, plastic, portable, presentation, public, repetitive, row, rows, seat, seating, seats, seminar, sit, sitting, spectator, sport, stadium, stage, vacant,