A century may undergo a civilization.Logical formLearned from21 sentences. A time may pertain-to a civilization.Logical formLearned from21 sentences. A civilization may pertain-to a language.Logical formLearned from21 sentences. A nature may pertain-to a civilization.Logical formLearned from21 sentences. A civilization can be grand.Logical formLearned from21 sentences. Diseases can be constituted-of-or-filled-with civilization.Logical formLearned from21 sentences. A time can be in a history of civilization.Logical formLearned from21 sentences. A civilization may fall.Logical formLearned from21 sentences. Western civilization may undergo survival.Logical formLearned from21 sentences. A civilization can be ecological.Logical formLearned from21 sentences. Civilization may undergo a test.Logical formLearned from21 sentences. Western civilization may undergo a fate.Logical formLearned from21 sentences. A civilization can be proud.Logical formLearned from21 sentences. Millions can be constituted-of-or-filled-with civilizations.Logical formLearned from21 sentences. A civilization can be divided.Logical formLearned from21 sentences.