Ключевые слова: barb, barbed, barrier, border, boundary, cage, camp, closed, concentration, concept, danger, dangerous, defense, dramatic, escape, fear, fence, forbidden, freedom, frontier, guard, hand, hazardous, hope, imprisoned, imprisonment, line, metal, net, obstacle, obstruction, peril, prison, prisoner, protect, protection, protective, punishment, safety, secure, security, separation, stock, unsafe, wall, warning, wire, zone,