Remnants may pertain-to a civilization.Logical formLearned from16 sentences. An origin may pertain-to a civilization.Logical formLearned from16 sentences. A civilization may undergo a discovery.Logical formLearned from16 sentences. A civilization can be wounded.Logical formLearned from16 sentences. Contact can be with western civilization.Logical formLearned from16 sentences. A role can be in civilization.Logical formLearned from16 sentences. Civilizations can be developed.Logical formLearned from16 sentences. Civilizations may undergo destruction.Logical formLearned from16 sentences. Contributions can be to (world civilization).Logical formLearned from16 sentences. A time may undergo civilizations.Logical formLearned from16 sentences. Contact can be with a civilization.Logical formLearned from16 sentences. A civilization can be noble.Logical formLearned from16 sentences. A ruling elite may pertain-to a civilization.Logical formLearned from16 sentences. A person may buy civilization.Logical formLearned from16 sentences. Elements may pertain-to a civilization.Logical formLearned from16 sentences.