Civilizations can be famous.Logical formLearned from14 sentences. A civilization may confront a civilization.Logical formLearned from14 sentences. American civilization may undergo a decline.Logical formLearned from14 sentences. A civilization can be in a region.Logical formLearned from14 sentences. An advance can be in civilization.Logical formLearned from14 sentences. Forms can be constituted-of-or-filled-with civilization.Logical formLearned from14 sentences. Civilizations can be medieval.Logical formLearned from14 sentences. Truth may undergo a civilization.Logical formLearned from14 sentences. A time may undergo a civilization.Logical formLearned from14 sentences. Civilization may be flourished.Logical formLearned from14 sentences. A civilization may be vanished.Logical formLearned from14 sentences. Western civilization may encroach on lands.Logical formLearned from14 sentences. A civilization can be in a country.Logical formLearned from14 sentences. A civilization may decline.Logical formLearned from14 sentences. A contribution can be to (world civilization).Logical formLearned from13 sentences.