Question: Christoph Willibald Gluck and Camille Saint-Saëns, have which occupation in common?
Sentence (from "L'île de Merlin, ou Le monde renversé"): L'île de Merlin, ou Le monde renversé (Merlin's Island, or the World Upended) is an opéra comique in one act composed by Christoph Willibald Gluck to a 1753 French libretto by Louis Anseaume based on Alain René Lesage and D'Orneval's 1718 vaudeville comedy "Le monde renversé".
Relevant evidence: No