A recommendation may pertain-to a principal.Logical formLearned from9 sentences. A (school principal) may say that something-is-the-case.Logical formLearned from9 sentences. (Vice principal) may pertain-to a school.Logical formLearned from9 sentences. Offices may pertain-to a principal.Logical formLearned from8 sentences. An one may pertain-to principals.Logical formLearned from8 sentences. A principal can be incompetent.Logical formLearned from8 sentences. A principal may pertain-to a middle school.Logical formLearned from8 sentences. A position can be as principal of a school.Logical formLearned from8 sentences. Assistant can be to a principal.Logical formLearned from8 sentences. A principal may pertain-to a section.Logical formLearned from8 sentences. A principal may pertain-to an establishment.Logical formLearned from8 sentences. Hands may pertain-to a principal.Logical formLearned from8 sentences. Principal may pertain-to a normal school.Logical formLearned from8 sentences. Principal may pertain-to a new school.Logical formLearned from8 sentences. Principal may undergo guidance.Logical formLearned from8 sentences.