Question: Niccola Spinelli, was an Italian composer of operas, premiered in Rome on 9 May 1890; the first prize went to Pietro Antonio Stefano Mascagni, who was an Italian composer, most noted for his operas, and which 1890 masterpiece?
{'answer': 'Cavalleria Rusticana', 'supporting_facts': [['Niccola Spinelli', 2], ['Pietro Mascagni', 0]]}