A center may pertain-to a principal.Logical formLearned from3 sentences. A forum may pertain-to principals.Logical formLearned from3 sentences. Principal may pertain-to a (training school).Logical formLearned from3 sentences. Principal may pertain-to a (female seminary).Logical formLearned from3 sentences. Sister can be a principal.Logical formLearned from3 sentences. A principal may open a school.Logical formLearned from3 sentences. A principal may have an identifier.Logical formLearned from3 sentences. (Assistant principals) can be selected.Logical formLearned from3 sentences. A (founder principal) may pertain-to a school.Logical formLearned from3 sentences. Principal may pertain-to a debt.Logical formLearned from3 sentences. Leadership may pertain-to principals.Logical formLearned from3 sentences. Negotiations can be with principals.Logical formLearned from3 sentences. Some stages may be organised in principal.Logical formLearned from3 sentences. Brother may become a principal.Logical formLearned from3 sentences. A male may become (principal cellist) of an orchestra.Logical formLearned from3 sentences.