Ключевые слова: arena, audience, background, bench, blank, building, business, chair, cinema, classroom, comfortable, competition, conference, convention, design, education, empty, entertainment, event, football, furniture, goal, group, hall, hospital, indoor, interior, line, meeting, modern, nobody, office, passenger, pattern, people, performance, perspective, place, presentation, public, room, row, seat, seating, seminar, silence, sitting, stadium, stage, vacant,