Ключевые слова: audience, auditorium, background, blank, business, chair, class, classroom, college, computer, conference, congress, convention, design, display, education, empty, event, exhibition, floor, futuristic, hall, inside, interactive, interior, lecture, light, low light, meeting, modern, no people, nobody, presentation, projector, room, row, school, screen, seat, seminar, speaker, technology, template, training, university, wall, white,