Question: Gerald Moore CBE (30 July 1899 – 13 March 1987) was an English classical pianist best known for his career as an accompanist for many famous musicians, among those with whom he was closely associated were which German soprano, and was among the foremost singers of lieder, and was renowned for her performances of Viennese operetta?
{'answer': 'Olga Maria Elisabeth Friederike Schwarzkopf', 'supporting_facts': [['Gerald Moore', 1], ['Elisabeth Schwarzkopf', 0]]}