Question: "Jagdgeschwader" 52  was the unit of the top three scoring flying aces of all time and included a pilot who flew how many combat missions?
{'answer': '1,404', 'supporting_facts': [['Jagdgeschwader 52', 0], ['Jagdgeschwader 52', 1], ['Erich Hartmann', 0], ['Erich Hartmann', 1]]}