Ключевые слова: army, arrest, background, barrier, boundary, city, closed, construction, danger, entrance, entry, equipment, exit, fence, forbidden, gate, government, guard, industrial, industry, isolated, jail, limit, metal, no, nobody, obstacle, outdoors, palace, park, prevent, prison, property, protect, protection, roadblock, safety, secure, security, sign, steel, stop, street, symbol, trespassing, urban, warning, way, white,