A separation may pertain-to a writer.Logical formLearned from9 sentences. Metals may undergo a separation.Logical formLearned from9 sentences. Pedestrian may undergo a separation.Logical formLearned from9 sentences. A system may undergo a separation.Logical formLearned from9 sentences. A school may undergo a separation.Logical formLearned from9 sentences. A separation can be narrow.Logical formLearned from9 sentences. Particles may undergo a separation.Logical formLearned from9 sentences. A goal can be a separation.Logical formLearned from9 sentences. Part may pertain-to a separation.Logical formLearned from9 sentences. A separation can be well-defined.Logical formLearned from9 sentences. A separation can be publicized.Logical formLearned from9 sentences. Metals may undergo a separation.Logical formLearned from9 sentences. Characters may undergo a separation.Logical formLearned from9 sentences. Males may undergo a separation.Logical formLearned from9 sentences. A separation can be distinctive.Logical formLearned from9 sentences.