Question: Are Acis and Galatea by Handel, and Mussorgsky's Boris Godunov, both operatic works?
Sentence (from "Boris Godunov (opera)"): Its subjects are the Russian ruler Boris Godunov, who reigned as Tsar (1598 to 1605) during the Time of Troubles, and his nemesis, the False Dmitriy (reigned 1605 to 1606).
Relevant evidence: No