Concentration can be in (information systems).Logical formLearned from12 sentences. Tannic acid may undergo concentration.Logical formLearned from12 sentences. A sampling may reveal concentrations of pollutants.Logical formLearned from12 sentences. Grandparents may die in (concentration camps).Logical formLearned from12 sentences. Deaths can be in (concentration camps).Logical formLearned from12 sentences. A (concentration level) can be high.Logical formLearned from12 sentences. Intelligence may undergo concentrations.Logical formLearned from12 sentences. An old continent may have concentrations of intelligence.Logical formLearned from12 sentences. Concentrations of hydrogen may produce signals.Logical formLearned from12 sentences. Scientists may deduce concentration of hydrogen.Logical formLearned from12 sentences. Concentration can be evident.Logical formLearned from12 sentences. A nazi (concentration camp) can be notorious.Logical formLearned from12 sentences. Graduates can be with concentration.Logical formLearned from12 sentences. An (oxygen concentration) can be low.Logical formLearned from12 sentences. Agents may undergo concentrations.Logical formLearned from12 sentences.