Question: Which has more acts, Hans Heiling or La favorite?
Sentence (from "Hans Heiling"): Hans Heiling is a German Romantic opera in 3 acts with prologue by Heinrich Marschner with a libretto by Eduard Devrient, who also sang the title role at the première at the Königliche Hofoper (now Berlin State Opera), Berlin, on 24 May 1833, and went on to become Marschner's most successful opera.
Relevant evidence: Yes