Question: Which opera has more acts, Der Rosenkavalier or Manon? 
Sentence (from "Manon"): It was first performed at the Opéra-Comique in Paris on 19 January 1884, with sets designed by Eugène Carpezat (Act I), Auguste-Alfred Rubé and Philippe Chaperon (Acts II and III), and Jean-Baptiste Lavastre (Act IV).
Relevant evidence: No