Question: The Toccata in D minor, Op. 11 is a piece for solo piano, written by Sergei Prokofiev in 1912 and debuted by the composer on December 10, 1916, other composers of well-known toccatas include who, which was a Soviet Armenian composer and conductor, and is considered one of the leading Soviet composers?
{'answer': 'Aram Khachaturian', 'supporting_facts': [['Toccata (Prokofiev)', 2], ['Aram Khachaturian', 0]]}