Ключевые слова: alone, background, book, boy, casual, caucasian, child, childhood, concept, copy space, day, education, elementary, focused, home, homework, imagination, interested, kid, knowledge, learn, learning, leisure, lesson, lifestyle, literature, male, open, person, preteen, pupil, read, reading, school, schoolboy, schoolkid, science, serious, sit, sitting, small, story, student, studying, sweet, task, textbook, white, young, youth,