Question: Which opera had more acts,  Il trovatore or Attila?
Sentence (from "Il trovatore"): Il trovatore (] ; Italian for "The Troubadour") is an opera in four acts by Giuseppe Verdi to an Italian libretto largely written by Salvadore Cammarano, based on the play "El trovador" (1836) by Antonio García Gutiérrez.
Relevant evidence: Yes