Ключевые слова: amphitheater, arena, audience, background, bench, blank, bleachers, blue, bottom, chair, chairs, color, competition, concert, empty, event, field, folding, football, game, ground, group, horizontal, line, multiple, nobody, number, objects, outdoor, outdoors, pattern, place, plastic, presentation, public, red, row, seat, seating, section, sit, sitting, soccer, sport, stadium, stage, stairs, stand, theater, united,