Ключевые слова: background, board, campus, chair, class, classroom, conference, desk, education, elementary, empty, exam, furniture, group, gym, hall, hallway, indoors, inside, learn, learning, lecture, lesson, light, meeting, modern, nobody, room, row, school, seat, seminar, space, student, students, study, studying, subject, table, teacher, teaching, training, wall, white,