A mother may sing to a male.Logical formLearned from21 sentences. A female may sing at a top of lungs.Logical formLearned from21 sentences. Pub may sing.Logical formLearned from21 sentences. A female may sing at a wedding.Logical formLearned from21 sentences. Others may sing songs.Logical formLearned from21 sentences. A person may sing a same song.Logical formLearned from21 sentences. A person may sing a hymn.Logical formLearned from21 sentences. Brothers may sing.Logical formLearned from21 sentences. A female may sing to persons.Logical formLearned from21 sentences. A noblewoman may sing.Logical formLearned from21 sentences. A person may sing song.Logical formLearned from21 sentences. A person may sing for some years.Logical formLearned from21 sentences. A person may sing a person songs.Logical formLearned from21 sentences. A schoolgirl may sing.Logical formLearned from21 sentences. A church may sing.Logical formLearned from21 sentences.