Ключевые слова: architecture, building, buildings, business, cable, cablecar, city, clean, cleaner, cleaning, commercial, danger, dangerous, dangling, elevated, elevator, exterior, facade, glass, hanging, hazard, hazardous, high, industrial, job, lift, maintenance, men, modern, occupation, office, outdoors, outside, person, property, safety, scrub, scrubing, service, skyscraper, steel, structure, suspended, tall, washer, washing, window, work, worker, working,