Fiorello Giraud created a roll in an opera that had how many acts?
Fiorello Giraud: Fiorello Giraud (22 October 1870 – 28 March 1928) was an Italian operatic tenor who sang leading roles in many Italian opera houses during the course of his career, including La Scala, the Teatro Regio di Parma, and the Teatro Regio di Torino, as well as in Spain, Portugal, and Latin America. Fiorello Giraud:  He is remembered today for having created the role of Canio in the world premiere of Leoncavallo's "Pagliacci". Pagliacci: Pagliacci (] ; literal translation, "Clowns") is an Italian opera in a prologue and two acts, with music and libretto by Ruggero Leoncavallo.
two acts