Ключевые слова: barbed, barbwire, barrier, boundary, building, burglar, chain, closed, coil, construction, crime, danger, defense, entrance, entry, fence, forbidden, gate, guard, industry, keep, limit, link, out, pattern, perimeter, premises, prevent, private, property, protect, protection, razor, safety, secure, security, sharp, site, slat, spiral, street, temporary, trespass, trespassing, urban, wall, wire, work, zone,