Question: Edgar Vincent was an American publicist and actor of German birth, He went on to specialize in being a publicist for opera singers, helping shape and forward the careers of major stars like which French-American operatic soprano and actress who had an active career from the late 1920s through the early 1970s?
{'answer': 'Lily Pons', 'supporting_facts': [['Edgar Vincent', 3], ['Lily Pons', 0]]}