Ключевые слова: aged, barbed, barrier, black, blue, border, boundary, chain, cloud, concept, concrete, crime, cross, danger, dark, dusk, empty, fence, freedom, grunge, grungy, guard, gulag, immigration, imprisonment, iron, isolated, jail, liberty, metal, military, obstacle, penitentiary, prison, prisoner, private, protection, refugee, safety, security, sharp, silhouette, sky, steel, sundown, symbol, wall, war, weathered, wire,