Question: A Novel written by who is an opera based on in four acts by Jules Massenet to a French libretto by Édouard Blau, Paul Milliet and Georges Hartmann, that is a mainstay of the repertory during its history have included the following works which have each been performed more than 1,000 times by the company?
Sentence (from "Werther"): Werther is an opera ("drame lyrique") in four acts by Jules Massenet to a French libretto by Édouard Blau, Paul Milliet and Georges Hartmann (who used the pseudonym Henri Grémont).
Relevant evidence: No