Ключевые слова: 20s, apprentice, apprenticeship, carpenter, carpentry, caucasian, equipment, factory, female, fifties, forehead, glasses, goggles, hispanic, horizontal, learning, machine, machinery, machinist, male, occupation, operating, operator, people, plane, safety, skill, supervising, supervisor, teaching, together, trail, training, twenties, two, view, women, wood, worker, working,