Ключевые слова: adult, assistance, building exterior, business, business person, businessman, candid, cardboard, caucasian ethnicity, construction industry, construction site, construction worker, cooperation, day, engineer, focus on foreground, group of people, hardhat, holding, human hand, industry, lifestyles, looking away, males, manager, men, mid adult, mid adult men, multiethnic group, nature, occupation, one person, outdoors, pointing, selective focus, sign, teamwork, text, two people, unrecognizable person, women, work helmet, working, yellow, young adult,