A civilization can be complicated.Logical formLearned from8 sentences. Characteristics may pertain-to civilizations.Logical formLearned from8 sentences. A civilization may die_out.Logical formLearned from8 sentences. A region may undergo civilizations.Logical formLearned from8 sentences. Civilizations can be industrialized.Logical formLearned from8 sentences. Civilization may complain about a noise.Logical formLearned from8 sentences. Civilization can be safe.Logical formLearned from8 sentences. Artifacts can be from civilizations.Logical formLearned from8 sentences. A civilization can be dense.Logical formLearned from8 sentences. A civilization can be part of a heritage.Logical formLearned from8 sentences. A conflict can be between civilization.Logical formLearned from8 sentences. A male may think of western civilization.Logical formLearned from8 sentences. Contacts can be with civilizations.Logical formLearned from8 sentences. A civilization can be to a goldfish.Logical formLearned from8 sentences. Western civilization may undergo teachings.Logical formLearned from8 sentences.