Ключевые слова: 400, 400m, area, athlete, athletic, background, canada, championship, competition, contest, curve, exercise, field, finish line, fitness, ground, healthy, jogging track, lane, line, lines, nobody, outdoor, playground, quebec, race, race lane, racetrack, red, run, runner, running track, school, speed, sport, sports, sports event, sports lines, sports track, sports venue, sprint, sprint lane, sprinter, sprinting, square, stadium, start, starting line, texture, track, track and field, training, win,