Question: Which opera has more acts, Il matrimonio segreto or Lohengrin?
Sentence (from "Lohengrin (opera)"): The story of the eponymous character is taken from medieval German romance, notably the "Parzival" of Wolfram von Eschenbach and its sequel, "Lohengrin", written by a different author, itself inspired by the epic of "Garin le Loherain".
Relevant evidence: No