Ключевые слова: alarm, alert, background, banner, beware, black, board, caution, closeup, construction, danger, dangerous, death, electric, electrical, electricity, energy, gas, hazard, high, icon, illustration, industrial, industry, isolated, label, lighting, lightning, mark, metal, metallic, no, not, oil, outdoors, plant, power, risk, safety, security, shock, sign, signboard, skeleton, skull, stop, symbol, warning, yellow,