A female may sing in a (church choir).Logical formLearned from41 sentences. Persons may sing a national anthem.Logical formLearned from41 sentences. Singers may sing.Logical formLearned from41 sentences. A female may sing in public.Logical formLearned from41 sentences. A son may sing.Logical formLearned from41 sentences. A person may sing a line.Logical formLearned from41 sentences. Blood may sing.Logical formLearned from41 sentences. A female may sing a ballad.Logical formLearned from41 sentences. A female may sing an aria.Logical formLearned from40 sentences. A male may sing hymns.Logical formLearned from40 sentences. A kid may sing.Logical formLearned from40 sentences. A male may sing tenor.Logical formLearned from40 sentences. A female may sing a hit.Logical formLearned from40 sentences. Persons may sing songs.Logical formLearned from39 sentences. A song may be sung by a female.Logical formLearned from39 sentences.