Individuals may undergo a circulation.Logical formLearned from8 sentences. A (circulation center) can be defined.Logical formLearned from8 sentences. Convection may develop around a center of circulation.Logical formLearned from8 sentences. Circulation can be in a brain.Logical formLearned from8 sentences. A circulation can be in a continent.Logical formLearned from8 sentences. A (circulation center) may pertain-to a system.Logical formLearned from8 sentences. A magazine may have a circulation of some copies.Logical formLearned from8 sentences. A circulation can be certified.Logical formLearned from8 sentences. A male can be in circulation.Logical formLearned from8 sentences. A circulation can be clear.Logical formLearned from8 sentences. A circulation may be stopped.Logical formLearned from8 sentences. Some banknotes can be in circulation.Logical formLearned from8 sentences. A (surface circulation) can be defined.Logical formLearned from8 sentences. A (surface circulation) may develop.Logical formLearned from8 sentences. A system may develop a circulation.Logical formLearned from8 sentences.