Ключевые слова: alone, barb, barbed, barbwire, barrier, border, boundary, captivity, closed, compound, concrete, condemned, convict, crime, criminal, danger, dangerous, defense, dull, enclosure, fence, forbidden, freedom, grey, guard, imprison, jail, nobody, prevent, prevention, prison, prisoner, property, protection, razor, safety, secure, security, silent, suburb, wall, war, wire, wired, zone,