A first opera can be with a libretto.Logical formLearned from4 sentences. A libretto may be translated.Logical formLearned from4 sentences. A libretto may be based on a story.Logical formLearned from4 sentences. A female may write a libretto.Logical formLearned from4 sentences. A libretto may pertain-to scribe.Logical formLearned from4 sentences. Work can be on a libretto.Logical formLearned from4 sentences. A libretto can be popular.Logical formLearned from4 sentences. Copies may pertain-to a libretto.Logical formLearned from4 sentences. A male may supply a libretto.Logical formLearned from4 sentences. A libretto may be revised.Logical formLearned from4 sentences. A libretto can be by a composer.Logical formLearned from4 sentences. A first draft may pertain-to a libretto.Logical formLearned from4 sentences. A libretto may be based on a play.Logical formLearned from4 sentences. A libretto can be by a novelist.Logical formLearned from4 sentences. Libretto may be written/wrote by a male.Logical formLearned from4 sentences.