Ключевые слова: agent, architect, builder, building, building site, business, client, concrete, construct, construction, construction site, contractor, controlling, crane, employed, employment, equipment, foreman, hardhat, hat, industry, job, labor, male, occupation, outdoors, partners, partnership, plan, project, protective, real estate, security helmet, site, structural work, supervisor, team, teamwork, tool, work, worker, workers, working,