Ключевые слова: abstract, background, barb, barbed, barbwire, black, border, closed, concepts, danger, dangerous, dark, decoration, design, edge, element, fence, form, frame, freedom, gray, horizontal, illustration, iron, isolated, isolation, line, metal, military, nobody, old, ornament, pattern, print, prison, protection, safety, security, sharp, sign, silhouette, sky, spiral, steel, stop, wall, war, warning, wire,