Question: When was the sovereign duke of the Duchy of Saxe-Coburg and Gotha diedto whom Symphony No. 2 in C major, Op. 140 dedicated to?
{'answer': '22 August 1893', 'supporting_facts': [['Symphony No. 2 (Raff)', 0], ['Symphony No. 2 (Raff)', 2], ['Ernest II, Duke of Saxe-Coburg and Gotha', 0]]}