Civilization may undergo conceptions.Logical formLearned from13 sentences. Civilization may undergo accomplishments.Logical formLearned from13 sentences. Persons may defend civilization.Logical formLearned from13 sentences. A road may connect (oil fields) to civilization.Logical formLearned from13 sentences. A civilization may be doomed.Logical formLearned from13 sentences. American civilization may manifest machine-mindedness.Logical formLearned from13 sentences. (Air warfare) may play to a machine-mindedness of American civilization.Logical formLearned from13 sentences. A war can be against civilization.Logical formLearned from13 sentences. Members may pertain-to a civilization.Logical formLearned from13 sentences. A higher level can be constituted-of-or-filled-with civilization.Logical formLearned from13 sentences. A civilization may end.Logical formLearned from13 sentences. Courses can be in civilization.Logical formLearned from13 sentences. Civilization may evolve.Logical formLearned from13 sentences. Features can be constituted-of-or-filled-with civilization.Logical formLearned from13 sentences. Aspects may pertain-to a civilization.Logical formLearned from13 sentences.