Question: Donald Spoto, is an American biographer and theologian, and is best known for his best-selling biographies of film and theatre celebrities such as which Swedish actress who starred in a variety of European and American films, and is best remembered for her roles as Ilsa Lund in "Casablanca" (1942)?
{'answer': 'Ingrid Bergman', 'supporting_facts': [['Donald Spoto', 1], ['Ingrid Bergman', 0]]}