Ключевые слова: adult, african, africanamerican, business, camera, carpenter, cheerful, confidence, construction, coworker, engineer, equipment, expertise, factory, group, happiness, hard, hardhat, hats, helmet, indoors, industry, looking, looking at camera, males, mechanic, men, mid, multiethnic, occupation, people, portrait, professional, protective, real, service, smiling, standing, teamwork, tool, two, work, worker, working, workshop, workwear, wrench, young,