Ключевые слова: background, barbed, barrier, black, blue, cable, chain, closed, control, danger, electric, electrical, electricity, energy, equipment, fence, forbidden, industrial, industry, lamp, lamppost, lantern, light, line, metal, military, nature, network, object, old, outdoor, pole, post, power, prison, protect, protection, safety, secret, security, sky, spiral, steel, technology, view, voltage, wall, white, wire,