A brother can be a singer.Logical formLearned from48 sentences. A singer may be gone.Logical formLearned from48 sentences. A singer may cover a song.Logical formLearned from48 sentences. Love can be with a singer.Logical formLearned from48 sentences. A husband may pertain-to a singer.Logical formLearned from48 sentences. Some tracks may be written/wrote by a singer.Logical formLearned from48 sentences. A (rock singer) may pertain-to a country.Logical formLearned from48 sentences. A career can be as an (opera singer).Logical formLearned from48 sentences. A singer can be in 1970s.Logical formLearned from48 sentences. Instruments can be for a singer.Logical formLearned from48 sentences. A rep may pertain-to a singer.Logical formLearned from48 sentences. Charities may pertain-to a singer.Logical formLearned from48 sentences. A chorus can be constituted-of-or-filled-with singers.Logical formLearned from48 sentences. A singer may call.Logical formLearned from48 sentences. A singer may undergo vocals.Logical formLearned from48 sentences.