Ключевые слова: african ethnicity, africanamerican ethnicity, architect, architecture, arm, arms crossed, building activity, building contractor, building exterior, business, businesswoman, civil engineer, civil engineering, confidence, construction industry, construction site, construction worker, copy space, coworker, engineer, engineering, expertise, factory, group of people, happiness, hardhat, head wear, industry, latin american and hispanic ethnicity, looking, manager, mature women, multiracial group, occupational safety and health, people, planning, portrait, pride, professional occupation, protection, public housing, reflective clothing, safety, security equipment, smiling, teamwork, white people, women, work helmet, working,