classroom, kindergarten, bright, empty, preschool, school, background, blackboard, blank, board, chair, chalkboard, class, college, colorful, concept, day, desk, dictation, education, equipment, exam, green, hall, indoor, inside, learn, lecture, lesson, light, modern, new, nobody, primary, program, pupil, room, row, screen, seat, study, studying, table, teaching, training, wooden
