Nations may undergo populations.Logical formLearned from30 sentences. A rural area may have a (population density).Logical formLearned from30 sentences. A group can be constituted-of-or-filled-with populations.Logical formLearned from30 sentences. A population may take part.Logical formLearned from30 sentences. An entirety may pertain-to a population.Logical formLearned from30 sentences. Some populations may be studied.Logical formLearned from30 sentences. A suburb may undergo a population.Logical formLearned from30 sentences. Population may undergo a doubling.Logical formLearned from30 sentences. A male may call on a population.Logical formLearned from30 sentences. Some estimate may place a population.Logical formLearned from30 sentences. A figure can be for a population.Logical formLearned from30 sentences. Species may undergo (population dynamics).Logical formLearned from30 sentences. Benefit can be to a population.Logical formLearned from30 sentences. A population can be in an area.Logical formLearned from30 sentences. Lives may pertain-to populations.Logical formLearned from30 sentences.