Ключевые слова: abstract, army, background, barb, barbed, barbwire, barrier, black, border, boundary, close, color, concept, crime, danger, fence, flare, forbidden, freedom, guard, iron, jail, keep, light, line, metal, military, nature, nobody, old, pattern, prison, protection, retro, rusty, safety, secure, security, sharp, silhouette, steel, summer, sun, sunset, symbol, twisted, war, wire, wires, yellow,