Ключевые слова: background, black, blackboard, board, bright, business, chair, chairs, chalkboard, class, classroom, college, conference, desk, desks, education, educational, empty, floor, furniture, group, hall, indoors, inside, interior, knowledge, learn, lecture, lesson, meeting, modern, nobody, office, room, row, school, schoolroom, seat, seminar, sitting, student, study, table, training, university, wall, white, wood, wooden, work,