A constitution may undergo an evolution.Logical formLearned from9 sentences. An evolution can be applied.Logical formLearned from9 sentences. An evolution can be graceful.Logical formLearned from9 sentences. Evolution can be progressive.Logical formLearned from9 sentences. A biological evolution may pertain-to species.Logical formLearned from9 sentences. Jaws may undergo an evolution.Logical formLearned from9 sentences. A prototype may undergo an evolution.Logical formLearned from9 sentences. Galaxies may undergo a (chemical evolution).Logical formLearned from9 sentences. A (boundary layer) may undergo an evolution.Logical formLearned from9 sentences. A result can be an evolution.Logical formLearned from9 sentences. A period can be constituted-of-or-filled-with human evolution.Logical formLearned from9 sentences. Persons may think of evolution.Logical formLearned from9 sentences. (Carbon dioxide) may undergo an evolution.Logical formLearned from9 sentences. A planetary system may undergo an evolution.Logical formLearned from9 sentences. Infectious diseases may undergo an evolution.Logical formLearned from9 sentences.