A need can be for a (classification system).Logical formLearned from11 sentences. A classification can be sophisticated.Logical formLearned from11 sentences. Obligations may undergo a classification.Logical formLearned from11 sentences. A classification may be applied.Logical formLearned from11 sentences. A site may undergo a classification.Logical formLearned from11 sentences. A (classification system) can be recognized.Logical formLearned from11 sentences. Classifications may pertain-to a philosopher.Logical formLearned from11 sentences. A (classification system) may pertain-to an international-political-entity.Logical formLearned from11 sentences. A reason can be for a classification.Logical formLearned from11 sentences. Plants may undergo a classification.Logical formLearned from11 sentences. (Classification systems) may pertain-to persons.Logical formLearned from11 sentences. (Patent documents) may undergo a classification.Logical formLearned from11 sentences. Books may undergo a classification.Logical formLearned from11 sentences. An event may undergo a classification.Logical formLearned from11 sentences. Classifications may be listed.Logical formLearned from11 sentences.