Ключевые слова: academic, angle, asian, bag, boys, break, caucasian, childhood, children, classmates, confident, copy, corridor, dreadlocks, elementary, ethnic, ethnicity, fifth, friends, friendship, fun, girls, grade, group, happy, home, horizontal, kids, knowledge, length, lifestyle, medium, multi, preteens, primary, pupils, racing, recess, rucksack, running, school, schoolboys, schoolchildren, schoolgirl, schoolgirls, space, students, time, together, urgency,