Ключевые слова: alert, army, beware, bomb, caution, cave, corridor, dangerous, deadly, death, defense, destruction, detection, device, dirty, entrance, evil, explode, explosion, factory, fear, forces, hazard, heavy, horizontal, horror, industrial, information, kill, land, manufacturing, military, mine, no people, occupation, problem, protection, risk, rock, safety, security, shaft, threat, tunnel, underground, war, warfare, warning, weapon,