(Rock singers) can be female.Logical formLearned from19 sentences. A sign may pertain-to a singer.Logical formLearned from19 sentences. A singer can be on an album.Logical formLearned from19 sentences. A singer can be weeks.Logical formLearned from19 sentences. A singer can be comic.Logical formLearned from19 sentences. A figure may pertain-to a singer.Logical formLearned from19 sentences. Tours may pertain-to a singer.Logical formLearned from19 sentences. A singer may be photographed.Logical formLearned from19 sentences. A person may see a singer.Logical formLearned from19 sentences. A girl can be a singer.Logical formLearned from19 sentences. Appearances may pertain-to a singer.Logical formLearned from19 sentences. A man may be knowned as a singer.Logical formLearned from19 sentences. (Lead singer) may have a voice.Logical formLearned from19 sentences. Favorites can be as a singer.Logical formLearned from19 sentences. An evening can be with a singer.Logical formLearned from19 sentences.