Ключевые слова: accident, advice, attention, beware, careful, caution, clean, cleaning, closeup, commercial, concept, danger, dirt, dirty, fall, floor, hazard, hotel, hygiene, inattention, information, injury, insurance, janitorial, job, maintenance, man, notice, outside, place, plastic, precaution, prevent, prevention, public, reminder, risk, safety, sanitary, service, sign, signage, signal, slip, slippery, surface, warning, wash, wet, yellow,