Question: The Moscow Philharmonic Orchestra is an orchestra based in Moscow, Russia, most associated with longtime conductor Kiril Kondrashin under whom it premiered which Russian composer and pianist, Fourth and Thirteenth symphonies as well as other works?
{'answer': 'Dmitri Dmitriyevich Shostakovich', 'supporting_facts': [['Moscow Philharmonic Orchestra', 2], ['Dmitri Shostakovich', 0]]}