Ключевые слова: abstract, arrest, backdrop, background, barbed, barblock, barbwire, barrier, black, bondage, border, boundary, cage, captivity, confinement, crime, danger, dangerous, detention, fence, illustration, imprisonment, iron, jail, limitation, metal, night, prevention, prickle, prison, protection, protective, restriction, safety, security, skein, spike, steel, tangle, thorn, twist, warning, wire,