Ключевые слова: african, african american, business, colleague, construct, construction site, contractor, control, employee, employment, engineer, engineering, factory, foreman, hard hat, hardhat, helmet, industrial, industry, inspector, job, laughing, leadership, looking, machine, maintenance, management, manager, mining, occupation, positive, professional, radio, safety, site, skilled, station, successful, supervisor, tablet, talking, team, together, track, transport, transportation, vehicle, work, workers, workplace,