(Population centers) may pertain-to a state.Logical formLearned from25 sentences. A center may pertain-to a shell.Logical formLearned from25 sentences. A center can be for a country.Logical formLearned from25 sentences. Centers can be high-pressure.Logical formLearned from25 sentences. A center may pertain-to a tradition.Logical formLearned from25 sentences. A center may pertain-to a gravity.Logical formLearned from25 sentences. A center can be constituted-of-or-filled-with population.Logical formLearned from25 sentences. A center can be for a region.Logical formLearned from25 sentences. A male may become a center.Logical formLearned from25 sentences. A (campus center) may pertain-to a person.Logical formLearned from25 sentences. A center may pertain-to a republic.Logical formLearned from25 sentences. (Shopping centers) can be outdoor.Logical formLearned from25 sentences. A core may pertain-to a center.Logical formLearned from25 sentences. A center can be constituted-of-or-filled-with energy.Logical formLearned from25 sentences. A center may provide technical assistance.Logical formLearned from25 sentences.