Ключевые слова: adult, architect, architecture, blueprint, building, building contractor, caucasian ethnicity, construction industry, construction site, construction worker, cooperation, development, discussion, engineer, engineering, equipment, expertise, foreman, fuel and power generation, hardhat, helmet, industry, looking, machinery, males, manager, men, mid adult, mining, occupation, outdoors, plan, planning, professional occupation, protective workwear, reflective clothing, reflector, safety, smiling, standing, surveyor, teamwork, technology, two people, women, work helmet, working, yellow,