Question: Dialogues of the Carmelites was an opera that had a libretto by which French composer and pianist?
Sentence (from "Denise Duval"): Denise Duval (Paris, 23 October 1921Bex, 25 January 2016) was a French soprano, best known for her performances in the works of Francis Poulenc on stage and in recital.
Relevant evidence: No