Ключевые слова: 67 years, academic, boy, boys, caucasian, caucasian ethnicity, child, childhood, corridor, depressed, development, education, elementary, floor, head down, indoors, information, innocence, intelligence, intelligent, knowledge, lifestyle, male, one person, sad, school, school kid, schoolgirl, sitting, stress, student, uneasy, uniform, upset, wisdom, worried,