Ключевые слова: ability, african, analyzing, architect, big, black, blue, build, business, caucasian, check, construction, contractor, controlling, discussion, drain, engineer, engineering, equipment, estate, expertise, facility, female, foreman, gray, hardhat, helmet, industrial, inspector, male, man, occupation, people, person, plan, professional, project, property, real estate, safety, site, standing, structural, structure, survey, system, tanks, water, woman, work,