A choir may sing dirges.Logical formLearned from10 sentences. A person may audition for a choir.Logical formLearned from10 sentences. A soloist can be in a choir.Logical formLearned from10 sentences. A person can be in a (school choir).Logical formLearned from10 sentences. A choir can be on a tour.Logical formLearned from10 sentences. A choir may sing in a background.Logical formLearned from10 sentences. Everyone can be in a choir.Logical formLearned from10 sentences. A member may pertain-to a (youth choir).Logical formLearned from10 sentences. A choir can be liberal.Logical formLearned from10 sentences. Members may pertain-to a (church choir).Logical formLearned from10 sentences. Everybody can be in a choir.Logical formLearned from10 sentences. Choirs may undergo performances.Logical formLearned from10 sentences. A choir can be elevated.Logical formLearned from10 sentences. Variety can be constituted-of-or-filled-with choirs.Logical formLearned from10 sentences. A (school choir) may pertain-to a person.Logical formLearned from10 sentences.