Ключевые слова: accident, advice, advisory, alert, attention, banner, careful, caution, coarse, current, danger, electricity, energy, fence, forbidden, grunge, hazard, high, high voltage, india, indian, industrial, information, message, metal, notice, pattern, power, precaution, protection, red, restricted, risk, safety, security, sign, station, stop, symbol, technology, text, texture, urban, volt, voltage, warning, warning sign,