Ключевые слова: african, architect, architecture, black, building, business, caucasian, cheerful, computer, construction, craftsman, engineer, engineering, equipment, facility, factory, foreman, happy, hardhat, helmet, industrial, industry, job, machine, machinery, male, man, manager, manufacture, manufacturing, occupation, operator, person, plant, portrait, production, professional, protection, protective, safety, smiling, tablet, technology, tool, uniform, warehouse, work, worker, workshop, young,