Question: What do La dame blanche and Il prigioniero have in common?
Sentence (from "Il prigioniero"): The work is based on the short story "La torture par l'espérance" ("Torture by Hope") from the collection "Nouveaux contes cruels" by the French writer Auguste Villiers de l'Isle-Adam and from "La Légende d'Ulenspiegel et de Lamme Goedzak" by Charles de Coster.
Relevant evidence: No