Ключевые слова: arena, audience, auditorium, backdrop, background, baseball, bench, bleachers, chair, chairs, color, concept, cultural, empty, environment, fan, fans, football, game, geometric, grandstand, group, hockey, many, modern, nobody, openair, outdoor, place, places, plastic, public, row, seat, seats, section, sit, sitting, soccer, spectator, sport, sporting, sports, stadium, symmetry, theater, tribune, tribunes, yellow,