Ключевые слова: background, backpack, black, blank, board, book, boy, caucasian, chalk, chalkboard, child, childhood, clean, clear, desk, dream, education, empty, face, gesture, green, grimace, happy, head, knowledge, learn, lesson, male, one, portrait, preschool, pupil, red, rucksack, school, schoolboy, schoolchild, schoolkid, smile, student, studio, study, suit, think, top, white, young, youth,