Ключевые слова: background, bench, black, blackboard, board, book, business, chair, chalk, chalkboard, class, classroom, clean, clock, college, concept, conference, desk, educate, education, educational, elementary, empty, exam, furniture, green, indoor, interior, knowledge, learn, lecture, lesson, light, modern, room, school, schoolroom, seat, seminar, student, study, success, table, teach, teacher, training, university, white, wisdom, wooden,