A principal can be tenured.Logical formLearned from3 sentences. A principal may make decisions.Logical formLearned from3 sentences. A principal can be active.Logical formLearned from3 sentences. Credentials may pertain-to a principal.Logical formLearned from3 sentences. Professional development can be for a principal.Logical formLearned from3 sentences. (Preparation programs) can be for a principal.Logical formLearned from3 sentences. Principals may cope with a climate.Logical formLearned from3 sentences. (Design principals) can be sustainable.Logical formLearned from3 sentences. Principals may call.Logical formLearned from3 sentences. Portions may pertain-to a principal.Logical formLearned from3 sentences. A dialogue can be among principals.Logical formLearned from3 sentences. Some principals can be in a US-city.Logical formLearned from3 sentences. Payment can be on a principal.Logical formLearned from3 sentences. Principal may undergo a cancellation.Logical formLearned from3 sentences. A principal may remain in an endowment.Logical formLearned from3 sentences.