Ключевые слова: accident, background, beware, bucket, building, careful, caution, clean, cleaner, cleaning service, cleaning services, cleaning supplies, cleanup, danger, fall, floor, floor cleaning, foot, hallway, hazard, housekeeping, icon, information, interior, lobby, maintenance, mop, mopped, mopping, notice, plastic, precaution, prevention, public, reserved, risk, safety, service, sign, signal, slip, slippery, slippery floor, stairs, symbol, warning, wet, wet floor, yellow, yellow board,