Ключевые слова: abstract, architecture, arena, athletic, athletics, background, cinder, cindertrack, coating, convenience, empty, exercise, field, finish, football, grass, green, ground, health, lane, line, nobody, outdoor, pattern, perspective, playground, race, racecourse, racetrack, red, run, running track, school, soccer, spectacle, sport, sports, stadium, start, summer, sunset, surface, synthetics, tournament, track, training, treadmill, way, white,