Ключевые слова: adult, assistance, boy, casual, caucasian, child, childhood, children, class, classmate, classroom, cropped, daycare, education, educational, elementary, female, friend, friendship, girl, happy, instrument, kid, kindergarten, learning, little, male, midsection, music, musical, occupation, people, person, play, playing, playschool, preschool, preschooler, primary, school, student, teacher, toddler, toy, woman, women, xylophone, young,