Ключевые слова: abstract, accident, across, activity, arm, bicycle, branch, broken, car, chain, chainsaw, cut, damage, economy, equipment, firewood, forest, forester, funny, green, hand, head, horizontal, human, industry, injury, job, length, log, lumber, man, natural, nature, occupation, outdoors, person, pine, power, protection, safety, saw, street, technology, timber, trunk, weather, windy, work,