Ключевые слова: age, architect, architecture, builder, building, career, caucasian, clipboard, concept, construction, contractor, crane, deaf, disabilities, engineer, engineering, estate, hand, hands, happy, healthcare, hearing, helmet, holding, industrial, inspection, inspector, job, language, learning, male, man, manager, manual, mature, men, older, osha, people, plan, plans, pointing, project, protective, safety, showing, sign, site, teacher, working,