Ключевые слова: abandoned, access, barrier, boundary, brass, captivity, chain, closed, constrain, door, element, enclosure, entrance, fence, forbidden, fortify, gate, iron, key, lock, lockdown, metal, metallic, outdoors, padlock, prevention, privacy, private, property, protect, protection, responsibility, restricted, safe, safeguard, safekeeping, safety, secret, secure, security, separation, social distance, solid, steel, strong, system, trespassing, wire, wrapped,