Ключевые слова: attention, bucket, building, business, caution, cleaner, cleaning, cleanup, dirty, floor, handle, health, hygiene, indoor, industrial, interior, janitorial, maintenance, mop, mopping, neaten, office, parked, plastic, process, remind, room, safety, service, sign, slip, slippery, sweep, symbol, tool, walk, wall, warning, wet, wheels, work, worker, yellow,