Civilizations can be mighty.Logical formLearned from5 sentences. A blow may be delivered against civilization.Logical formLearned from5 sentences. A civilization can be for ages.Logical formLearned from5 sentences. Civilization can be a process of setting man.Logical formLearned from5 sentences. Western civilization may undergo institutions.Logical formLearned from5 sentences. Representative can be constituted-of-or-filled-with extraterrestrial civilizations.Logical formLearned from5 sentences. Streams can be constituted-of-or-filled-with civilization.Logical formLearned from5 sentences. A civilization may thrive.Logical formLearned from5 sentences. Records can be constituted-of-or-filled-with civilization.Logical formLearned from5 sentences. Structures may pertain-to a civilization.Logical formLearned from5 sentences. A revolt can be against civilization.Logical formLearned from5 sentences. Some areas can be constituted-of-or-filled-with civilization.Logical formLearned from5 sentences. Human civilization may collapse.Logical formLearned from5 sentences. A game can be a civilization.Logical formLearned from5 sentences. Sounds can be constituted-of-or-filled-with civilization.Logical formLearned from5 sentences.