A principal may request an operation.Logical formLearned from4 sentences. A principal can be a participant.Logical formLearned from4 sentences. A male can be (principal investigator).Logical formLearned from4 sentences. A principal may pertain-to a sponsor.Logical formLearned from4 sentences. A principal may certify that something-is-the-case.Logical formLearned from4 sentences. A benefit may pertain-to principals.Logical formLearned from4 sentences. A principal can be in tears.Logical formLearned from4 sentences. A principal may hold true.Logical formLearned from4 sentences. Differences can be between principals.Logical formLearned from4 sentences. An influence may pertain-to a principal.Logical formLearned from4 sentences. Principals can be users.Logical formLearned from4 sentences. Advice may pertain-to a principal.Logical formLearned from4 sentences. An academic-board may chair by a principal.Logical formLearned from4 sentences. Principals can be stated.Logical formLearned from4 sentences. An excess may be applied to principal.Logical formLearned from4 sentences.