An opera can be on a subject.Logical formLearned from16 sentences. A premiere may pertain-to a first opera.Logical formLearned from16 sentences. (Soap operas) can be melodramatic.Logical formLearned from16 sentences. An opera may undergo a cancellation.Logical formLearned from16 sentences. A theme may pertain-to an opera.Logical formLearned from16 sentences. A (soap opera) may pertain-to a US-president.Logical formLearned from16 sentences. A (soap opera) can be weekly.Logical formLearned from16 sentences. An (opera house) may pertain-to a person.Logical formLearned from16 sentences. Opera may be performed.Logical formLearned from16 sentences. Selections can be from an opera.Logical formLearned from16 sentences. A (soap opera) can be crazy.Logical formLearned from16 sentences. An opera can be about a male.Logical formLearned from16 sentences. A genre can be constituted-of-or-filled-with opera.Logical formLearned from16 sentences. An introduction can be to opera.Logical formLearned from16 sentences. An opera may be based on a novel.Logical formLearned from16 sentences.