A male can be in an opera.Logical formLearned from23 sentences. An opera can be beautiful.Logical formLearned from23 sentences. Fans can be constituted-of-or-filled-with opera.Logical formLearned from23 sentences. An opera may be performed.Logical formLearned from23 sentences. Operas can be romantic.Logical formLearned from23 sentences. A comic opera may undergo a production.Logical formLearned from23 sentences. An opera can be commissioned.Logical formLearned from23 sentences. (Opera house) can be in a world-city.Logical formLearned from23 sentences. Opera may undergo a birth.Logical formLearned from23 sentences. Tickets can be to an opera.Logical formLearned from23 sentences. An opera can be beloved.Logical formLearned from23 sentences. An (opera house) may pertain-to the world.Logical formLearned from23 sentences. Opera can be an art.Logical formLearned from23 sentences. (Opera singers) may pertain-to a country.Logical formLearned from23 sentences. A person may find at an opera.Logical formLearned from23 sentences.