A certification can be a certificate.Logical formLearned from4 sentences. A (certification exam) can be rigorous.Logical formLearned from4 sentences. Certification may require some hours.Logical formLearned from4 sentences. A certification can be on file.Logical formLearned from4 sentences. Variety can be constituted-of-or-filled-with professional certifications.Logical formLearned from4 sentences. A (certification process) can be cumbersome.Logical formLearned from4 sentences. A (certification program) may be implemented.Logical formLearned from4 sentences. A certification can be rigorous.Logical formLearned from4 sentences. A vagueness of (certification claims) can be a flaw.Logical formLearned from4 sentences. Petitions can be for certification.Logical formLearned from4 sentences. Costs can be for certification.Logical formLearned from4 sentences. A (certification process) can be for a teacher.Logical formLearned from4 sentences. Sort of certification may get a person.Logical formLearned from4 sentences. A state may undergo a certification.Logical formLearned from4 sentences. (Certification authorities) may undergo recognition.Logical formLearned from4 sentences.