Ключевые слова: absence, architecture, audience, auditorium, board room, built structure, business, ceiling, chair, classroom, clean, communication, convention center, copy space, corridor, day, desk, diminishing perspective, domestic room, education, empty, entrance hall, equipment, flooring, focus on foreground, group of objects, in a row, indoors, inside of, large, learning, lecture hall, modern, no people, office, presentation, projection equipment, projection screen, seat, selective focus, seminar, sitting, soft focus, table, teaching, toned image, vanishing point, waiting, window,