Question: The main character of The Pianist survives due to the help of a German army captain, who was taken prisoner by what army?
Sentence (from "Jagdstaffel 12"): As one of the original German fighter squadrons, the unit would score 155 aerial victories (including three wins over observation balloons) during the war, at the expense of seventeen killed in action, eight wounded in action, and one taken prisoner of war.
Relevant evidence: No