Ключевые слова: architecture, audience, auditorium, background, board, building, business, center, chair, classroom, communication, conference, congress, convention, corporate, design, education, empty, event, hall, hotel, indoor, indoors, inside, interior, lecture, light, meeting, microphone, modern, nobody, office, presentation, professional, public, room, row, scene, screen, seat, seating, seminar, show, stage, training, tribune, university, work, workshop,