Question: New Zealand born British conductor Ross Pople has worked with what Polish Composer whose best known works include Polish Requiem, Anaklasis and Utrenja?
{'answer': 'Krzysztof Penderecki', 'supporting_facts': [['Ross Pople', 0], ['Ross Pople', 2], ['Krzysztof Penderecki', 0], ['Krzysztof Penderecki', 2]]}