Question: What is the name of a German rocket-powered fighter aircraft designed by Alexander Lippisch, the original version being the first to exceed 1000km/h and the subsequent version, known as the Me 263 Scholle having had 3 prototypes, non of which were ever flown?
{'answer': 'Messerschmitt', 'supporting_facts': [['Messerschmitt Me 263', 0], ['Messerschmitt Me 263', 1], ['Messerschmitt Me 163 Komet', 0], ['Messerschmitt Me 163 Komet', 1]]}