Ключевые слова: alonewindow, building, business, city, clean, cleaner, cleaning, danger, dangerous, dirty, dizziness, efficiency, facade, group, harness, helmet, high, job, maintenance, man, management, milan, occupation, office, organization, outside, palazzo lombardia, property, risk, rope, safety, service, shiny, skyscraper, skyscrapers, synchrony, washer, windows, worker, workers,