Question: Which opera  Pelléas et Mélisande and Die schweigsame Frau has fewer acts ?
Sentence (from "Die schweigsame Frau"): Die schweigsame Frau ("The Silent Woman"), Op. 80, is a 1935 opera in three acts by Richard Strauss with libretto by Stefan Zweig after Ben Jonson's "Epicoene, or the Silent Woman".
Relevant evidence: Yes