Ключевые слова: abandoned, aisle, amphitheater, arena, assembly, audience, background, bench, blank, bleachers, blue, bottom, chair, color, concert, empty, event, fans, field, folding, football, game, grandstand, group, horizontal, line, multiple, nobody, number, objects, outdoors, pattern, place, plastic, presentation, public, row, seat, seating, seats, section, sit, sitting, soccer, spectator, sport, stadium, stage, stand, theater,