Ключевые слова: accident, alert, attention, banner, be careful, beware, careful, caretaker, carpet, caution, clean, cleaner, color, danger, dangerous, down, fall, falling, floor, hazard, human, icon, illustration, information, isolated, janitorial, lobby, maintenance, men, mop, notice, port, prevent, prevention, repairing, risk, safety, sign, skid, slide, slip, slippery, stick, symbol, tiled, warning, washing, way, wet,