Complex sentence: Suddenly an argument erupted between the Modoc warrior Scarfaced Charley and Lieutenant Frazier A. Boutelle, of company B, 1st Cavalry, who pulled their revolvers and shot at each other, both missing.
Split into simpler sentences: Suddenly an argument erupted between Modoc warrior Scarfaced Charley and Lieutenant Frazier A. Boutelle, of company B, 1st Cavalry. They drew their revolvers and shot at each other, both missing.