A shift can be to a center.Logical formLearned from55 sentences. Financial centers can be global.Logical formLearned from55 sentences. A center can be constituted-of-or-filled-with civilization.Logical formLearned from55 sentences. A (trade center) can be regional.Logical formLearned from55 sentences. A center can be from a country.Logical formLearned from55 sentences. A black hole can be at a center of a galaxy.Logical formLearned from55 sentences. Centers can be environmental.Logical formLearned from55 sentences. A center may pertain-to a mixture.Logical formLearned from55 sentences. A center may pertain-to a tale.Logical formLearned from55 sentences. A center may pertain-to a port city.Logical formLearned from55 sentences. A part may pertain-to a (city center).Logical formLearned from55 sentences. A center may pertain-to a bus.Logical formLearned from55 sentences. A center may pertain-to ice.Logical formLearned from55 sentences. A (command center) may pertain-to a US-city.Logical formLearned from55 sentences. A center may note that something-is-the-case.Logical formLearned from55 sentences.