Ключевые слова: audience, auditorium, background, board, business, center, chair, class, classroom, community, concert, conference, conferences, congress, convention, corporate, culture, education, empty, events, finance, furniture, hall, indoors, information, inside, interior, learn, lesson, light, meetings, modern, new, nobody, office, presentation, professional, room, school, seat, seminar, space, stage, table, theater, training, university, visual, work,