Ключевые слова: athletic, background, basketball, center, city, competition, court, education, empty, equipment, exercise, field, floor, forest, fun, game, green, ground, gym, healthy, lane, leisure, line, nature, net, nobody, outdoor, park, pattern, play, playground, race, racetrack, recreation, rubber, run, running, sand, sport, sports, stadium, surface, tennis, texture, textured, track, training, urban, white, yard,