A civilisation can be universal.Logical formLearned from7 sentences. Civilisations can be primitive.Logical formLearned from6 sentences. Astronomical observatories can be constituted-of-or-filled-with ancient civilisations.Logical formLearned from6 sentences. Civilisations can be prehistoric.Logical formLearned from6 sentences. Civilisations can be complex.Logical formLearned from6 sentences. Civilisations may undergo a rise.Logical formLearned from6 sentences. A battle can be between civilisations.Logical formLearned from6 sentences. A civilisation can be global.Logical formLearned from6 sentences. A cradle can be constituted-of-or-filled-with civilisation.Logical formLearned from6 sentences. Civilisations can be known.Logical formLearned from5 sentences. Civilisations may undergo a development.Logical formLearned from5 sentences. Civilisations may undergo a fall.Logical formLearned from5 sentences. A continent may undergo civilisations.Logical formLearned from5 sentences. Variety can be constituted-of-or-filled-with civilisations.Logical formLearned from5 sentences. Civilisations can be powerful.Logical formLearned from5 sentences.