Ключевые слова: activity, adult, architect, architecture, blueprint, building contractor, built structure, business, businessman, caucasian ethnicity, construction industry, construction worker, design, design professional, development, document, drawing, engineer, engineering, equipment, expertise, hand, hardhat, holding, human hand, indoors, instrument of measurement, men, modern, occupation, one person, paper, pencil, plan, planning, pointing, professional occupation, ruler, sketch, technology, working,