Ключевые слова: 20s, 40s, apprentice, apprenticeship, builders, building, business, caucasian, clothing, construction, design, discussion, drawing, foreman, high, home, horizontal, house, indoors, industry, learning, meeting, outdoors, people, person, plan, reflective, safety, scaffolding, site, small, standing, teaching, together, trail, twenties, vest, visibility, worker, working,