A father can be (opera singer).Logical formLearned from35 sentences. A history may pertain-to a singer.Logical formLearned from35 sentences. A portrait may show a singer.Logical formLearned from35 sentences. A male may meet a singer.Logical formLearned from35 sentences. Groups can be constituted-of-or-filled-with singers.Logical formLearned from35 sentences. A singer can be nice.Logical formLearned from35 sentences. A singer may undergo a birthday.Logical formLearned from35 sentences. A singer may make a debut.Logical formLearned from35 sentences. A role can be as singer.Logical formLearned from35 sentences. Luminaries can be as a singer.Logical formLearned from35 sentences. A singer may admit that something-is-the-case.Logical formLearned from35 sentences. A male can be a fan of a singer.Logical formLearned from35 sentences. A car may pertain-to a singer.Logical formLearned from35 sentences. A parody may pertain-to a singer.Logical formLearned from35 sentences. A female may work as a singer.Logical formLearned from35 sentences.