Ключевые слова: african, architect, black, blueprint, blueprints, build, builder, business, caucasian, construction, contractor, digging, employee, employment, engineer, engineering, estate, expertise, female, foreman, gray, hardhat, helmet, industrial, industry, male, man, occupation, people, person, plan, portrait, professional, project, property, real estate, safety, scaffold, scaffolding, site, structural, structure, successful, survey, tanks, thumbs up, water, woman, work, workplace,