Ключевые слова: architecture, athletic, audience, auditorium, bench, chair, chairs, concert, conference, construction, covid 19 sport, crowd, decorative, empty, empty seats, empty stadium, entertainment, event, football tribune, geometric, horizontal, line, multiple, nobody, number, numbers, objects, outdoors, parallel, pattern, performance, perspective, place, plastic, playground, presentation, row, seat, seat stadium, seating, section, showing, sit, sitting, spectator, sport, sportive, stage, stair, stand, theater,