A civilization can be underground.Logical formLearned from25 sentences. A civilization can be organized.Logical formLearned from25 sentences. Persons may live in a civilization.Logical formLearned from25 sentences. Civilization may be doomed.Logical formLearned from25 sentences. Civilizations can be known.Logical formLearned from25 sentences. An ancient civilization may thrive in a continental-region.Logical formLearned from25 sentences. An (organizing principle) can be for civilization.Logical formLearned from25 sentences. Stages can be constituted-of-or-filled-with civilization.Logical formLearned from25 sentences. A doubter can be ruthless in a criticism of a rationalism of western civilization.Logical formLearned from25 sentences. Civilizations can be islamic.Logical formLearned from25 sentences. A basis may pertain-to a civilization.Logical formLearned from25 sentences. Civilizations may undergo achievements.Logical formLearned from24 sentences. An ancient civilization can be with a history.Logical formLearned from24 sentences. A civilization may be flourished.Logical formLearned from24 sentences. A civilization can be distinctive.Logical formLearned from24 sentences.