Question: In what year was a commander of Ergänzungs-Jagdgruppe Ost who claimed a total of 212 aerial victories born?
{'answer': '1912', 'supporting_facts': [['Ergänzungs-Jagdgruppe Ost', 0], ['Ergänzungs-Jagdgruppe Ost', 4], ['Hermann Graf', 0], ['Hermann Graf', 3]]}