Ключевые слова: adult, architect, architecture, blueprint, building, building contractor, built structure, bulldozer, businessman, candid, caucasian ethnicity, construction equipment, construction industry, construction machinery, construction site, construction worker, development, earth mover, engineer, engineering, equipment, expertise, foreman, hardhat, helmet, industry, inspector, looking, machinery, males, manager, men, mid adult, mining, occupation, one man only, one person, outdoors, plan, planning, professional occupation, protective workwear, reflective clothing, safety, standing, teamwork, work helmet, working,