(Opera companies) may pertain-to a country.Logical formLearned from10 sentences. Roles can be on a (soap opera).Logical formLearned from10 sentences. A comic opera can be by a male.Logical formLearned from10 sentences. A song can be from an opera.Logical formLearned from10 sentences. A piece can be from an opera.Logical formLearned from10 sentences. An appearance can be on an (opera stage).Logical formLearned from10 sentences. A theme can be from an opera.Logical formLearned from10 sentences. A male may direct some operas.Logical formLearned from10 sentences. An opera may receive reviews.Logical formLearned from10 sentences. An opera may be performed in a world-city.Logical formLearned from10 sentences. A female may play an (opera singer).Logical formLearned from10 sentences. Compositions may include an opera.Logical formLearned from10 sentences. An (opera stage) may pertain-to a world-city.Logical formLearned from10 sentences. A (summer opera festival) can be annual.Logical formLearned from10 sentences. Some opera can be by a composer.Logical formLearned from10 sentences.