Ключевые слова: active, blurred, boy, break, breaktime, caucasian, cheerful, child, childhood, children, classmate, education, elementary, energetic, energy, friends, friendship, fun, game, girl, group, hall, happy, joy, joyful, kid, learning, many, motion, motion blur, move, people, person, play, preteen, pupil, racing, recess, relax, running, school, schoolboy, schoolchildren, schoolgirl, space, studying, term, time, young, youth,