Communities may undergo concentration.Logical formLearned from22 sentences. Engineers may undergo concentration.Logical formLearned from22 sentences. Pesticides may undergo concentrations.Logical formLearned from22 sentences. (Salt concentrations) can be high.Logical formLearned from22 sentences. Some concentrations may be offered.Logical formLearned from22 sentences. Caffeine may undergo concentration.Logical formLearned from22 sentences. An (ash concentration) can be high.Logical formLearned from22 sentences. A female may die in a (concentration camp).Logical formLearned from22 sentences. Pharmaceuticals may undergo concentrations.Logical formLearned from22 sentences. Benzene may undergo concentration.Logical formLearned from22 sentences. A teenager can be in a (concentration camp).Logical formLearned from22 sentences. Troops may undergo concentration.Logical formLearned from22 sentences. Concentrations can be suspected.Logical formLearned from22 sentences. Concentration can be in an area.Logical formLearned from21 sentences. Antigen may undergo concentration.Logical formLearned from21 sentences.