Opera may undergo a development.Logical formLearned from41 sentences. (Opera houses) can be famous.Logical formLearned from41 sentences. Operas may be performed.Logical formLearned from41 sentences. An opera can be full-scale.Logical formLearned from41 sentences. An (opera singer) can be celebrated.Logical formLearned from41 sentences. Opera can be (art form).Logical formLearned from41 sentences. (Soap operas) can be daily.Logical formLearned from41 sentences. An (opera house) may pertain-to a US-city.Logical formLearned from41 sentences. A list may pertain-to operas.Logical formLearned from40 sentences. An opera may premiere on a month.Logical formLearned from40 sentences. (Opera houses) may pertain-to a continent.Logical formLearned from40 sentences. Some operas can be by a composer.Logical formLearned from39 sentences. An (opera career) can be international.Logical formLearned from38 sentences. A scene may pertain-to an opera.Logical formLearned from38 sentences. Operas may pertain-to a female.Logical formLearned from38 sentences.