An increase can be in concentration of (greenhouse gases).Logical formLearned from8 sentences. Concentrations can be in men.Logical formLearned from8 sentences. A student can be with concentrations.Logical formLearned from8 sentences. Horrors may pertain-to a (concentration camp system).Logical formLearned from8 sentences. Sulfuric acid may undergo concentrations.Logical formLearned from8 sentences. Deportation can be to a (concentration camp).Logical formLearned from8 sentences. Concentration can be on tasks.Logical formLearned from8 sentences. Concentrations can be reasonable.Logical formLearned from8 sentences. Concentration can be liberal.Logical formLearned from8 sentences. Effects can be from (drug concentrations).Logical formLearned from8 sentences. (Swing voters) may undergo concentration.Logical formLearned from8 sentences. Terrorists may undergo concentration.Logical formLearned from8 sentences. (Loan concentrations) can be in telecommunications.Logical formLearned from8 sentences. Negative ions may undergo concentration.Logical formLearned from8 sentences. A storm may miss concentration of oil.Logical formLearned from8 sentences.