A (choir director) may pertain-to a female.Logical formLearned from8 sentences. A choir may give concerts.Logical formLearned from8 sentences. Master may pertain-to a choir.Logical formLearned from8 sentences. A bay may pertain-to a choir.Logical formLearned from8 sentences. A choir may be founded by a male.Logical formLearned from8 sentences. A (youth choir) may pertain-to a US-city.Logical formLearned from8 sentences. A (chamber choir) may pertain-to a male.Logical formLearned from8 sentences. A male may work with a choir.Logical formLearned from8 sentences. A school may have some choirs.Logical formLearned from8 sentences. A choir may consist of some singers.Logical formLearned from8 sentences. A choir can be formed.Logical formLearned from8 sentences. A choir can be at an university.Logical formLearned from8 sentences. Choirs can be in a world-city.Logical formLearned from8 sentences. A choir may be built.Logical formLearned from8 sentences. A choir can be elementary.Logical formLearned from8 sentences.