A libretto may be adapted by a brother.Logical formLearned from2 sentences. A female may translate some (opera librettos).Logical formLearned from2 sentences. A libretto may pertain-to a title.Logical formLearned from2 sentences. A libretto may present a view of a man.Logical formLearned from2 sentences. A libretto may pertain-to persons.Logical formLearned from2 sentences. A libretto can be colorful.Logical formLearned from2 sentences. A libretto may be based on a legend.Logical formLearned from2 sentences. A male may base a libretto on a play.Logical formLearned from2 sentences. A libretto can be clever.Logical formLearned from2 sentences. Librettos can be for operettas.Logical formLearned from2 sentences. Parts may pertain-to a libretto.Logical formLearned from2 sentences. A libretto can be successful.Logical formLearned from2 sentences. A text may be based on a libretto.Logical formLearned from2 sentences. A male may write (opera librettos).Logical formLearned from2 sentences. A male can be famous for librettos.Logical formLearned from2 sentences.