Ключевые слова: 20, 30, 40, american, arena, artificial, astroturf, athletics, background, ball, bleachers, copy, dark, day, design, empty, field, fifty, football, forty, game, graphic, grass, green, grunge, hash, horizontal, light, line, marks, nobody, number, numbers, outdoors, outside, pattern, play, sideline, space, sport, stadium, sunny, team, thirty, turf, twenty, vertical, wall, wallpaper, yard, yardline,