Ключевые слова: audience, auditorium, business, call, center, ceremony, chair, chairs, classroom, communication, conference, congress, contemporary, convention, design, education, eight, empty, entrance, equipment, expertise, forum, furniture, green, group, hall, hotel, in, indoors, interview, large, learning, lecture, listening, meeting, nobody, numbers, office, political, professional, projection, rally, room, rows, seat, seminar, shot, university, wall,