Ключевые слова: 3035 years, 30s, africanamerican, american, apartment, architect, assistance, carrying, caucasian, colleague, concentration, construction site, construction worker, constructor, contractor, cooperation, coworker, employee, engineer, equipment, european, expertise, fixing, foreman, french, german, handyman, hard hat, hardhat, helmet, holding, indoors, job, labor, man, manual, material, occupation, person, plank, professional, protective, repair, safety, service, working, workman, workwear,