Ключевые слова: black, book, boy, caucasian, child, childhood, children, class, classroom, college, concept, education, elementary, elementary school, female, girl, happy, kid, knowledge, learn, learning, lesson, little, looking, male, medium group of people, mid adult, mixedrace, multiracial, occupation, people, person, pupil, school, sitting, smiling, student, study, studying, teacher, teaching, unaltered, university, woman, young, young female,