Ключевые слова: 30s adult, 3539 years, adult, architect, building contractor, business, caucasian ethnicity, clear sky, clipboard, clothing, concentration, confidence, construction, construction site, construction worker, copy space, daydreaming, daytime, engineer, examining, halflength, hard hat, helmet, holding, looking away, male, men, midadult, midadult man, mountain, occupations, one, one person, outdoors, people, poland, professional, protection, protective clothing, safety, safety vest, sand, site manager, standing, sunshine, supervisor, thinking, vehicle, warsaw, worker, working,