Ключевые слова: basement, biochemistry, blue, camera, chemical, cleaning, color image, county, coworker, craft, craftsman, dirty, drain, equipment, factory, fetid, firefighter, four people, glove, hand, horizontal, identity, industrial, industry, iron, job, looking, mechanic, men at work, metal, occupation, old, person, pipe, plastic, plumber, plumbing, pollution, pouring, protection, rusteaten, septic, snake, steel, tool, upstate, work, working,