Ключевые слова: alert, area, beware, care, careful, caution, closeup, color, corridor, danger, dangerous, fall, floor, hazard, height, high, information, label, ladder, mind, notice, people, precaution, prevent, prevention, public, reminder, risk, safety, scary, sign, slip, staircase, stairs, stairway, station, steep, step, sticker, subway, surface, text, trip, underground, walk, warning, watch, word, yellow,