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?
Sentence (from "Niccola Spinelli"): His most well-known work is "A Basso Porto" ("At the Lower Harbor"), which premiered in Cologne on 18 April 1894 to great popular acclaim.
Relevant evidence: No