Civilization may be destroyed.Logical formLearned from24 sentences. Human civilization may undergo survival.Logical formLearned from24 sentences. Competition can be with civilizations.Logical formLearned from24 sentences. A part can be constituted-of-or-filled-with civilization.Logical formLearned from24 sentences. A civilization can be black.Logical formLearned from24 sentences. Civilizations can be agrarian.Logical formLearned from23 sentences. A site may pertain-to a civilization.Logical formLearned from23 sentences. Signals can be from civilizations.Logical formLearned from23 sentences. A principle can be constituted-of-or-filled-with civilization.Logical formLearned from23 sentences. Civilizations can be around the world.Logical formLearned from23 sentences. Civilization may undergo a definition.Logical formLearned from23 sentences. An alien civilization can be advanced.Logical formLearned from23 sentences. Civilizations can be in a country.Logical formLearned from23 sentences. A civilization may undergo institutions.Logical formLearned from23 sentences. Civilizations may undergo achievements.Logical formLearned from23 sentences.