Ключевые слова: abstract, background, blackboard, blur, blurred, bokeh, bookcase, cabinet, chair, chairs, chalkboard, child, class, classroom, college, concept, design, desk, education, empty, furniture, indoor, indoors, information, inside, interior, kid, knowledge, learn, learning, lecture, lesson, light, many, modern, nobody, perspective, room, row, school, seat, student, study, table, teaching, university, wall, white, wood,