Operas can be in a language.Logical formLearned from16 sentences. A composer may write an opera.Logical formLearned from16 sentences. An opera may undergo a development.Logical formLearned from16 sentences. A sister can be (opera singer).Logical formLearned from16 sentences. An opera can be renowned.Logical formLearned from16 sentences. Scenes can be from an opera.Logical formLearned from16 sentences. An opera may receive some performances.Logical formLearned from16 sentences. An italian composer can be constituted-of-or-filled-with operas.Logical formLearned from16 sentences. A comic opera can be with a libretto.Logical formLearned from16 sentences. An opera may be entitled.Logical formLearned from16 sentences. An (opera performance) may pertain-to a female.Logical formLearned from16 sentences. A part can be in a (soap opera).Logical formLearned from16 sentences. An opera may be based on a play.Logical formLearned from16 sentences. Variety can be constituted-of-or-filled-with operas.Logical formLearned from16 sentences. Some opera can be by a male.Logical formLearned from16 sentences.