Concentration may undergo a reduction.Logical formLearned from11 sentences. Persons may live in (concentration camps).Logical formLearned from11 sentences. A reagent may undergo concentration.Logical formLearned from11 sentences. (Minority students) may undergo concentration.Logical formLearned from11 sentences. Concentrations can be in rivers.Logical formLearned from11 sentences. An (alcohol concentration) can be prohibited.Logical formLearned from11 sentences. Internment can be in (concentration camps).Logical formLearned from11 sentences. Concentration may pertain-to a general.Logical formLearned from11 sentences. Industry may undergo concentrations.Logical formLearned from11 sentences. Vocs may undergo concentrations.Logical formLearned from11 sentences. (Nerve agent) may undergo concentration.Logical formLearned from11 sentences. Stress may undergo concentration.Logical formLearned from11 sentences. A (greenhouse gas) may undergo concentration.Logical formLearned from11 sentences. A logarithm may pertain-to a (hydrogen ion concentration).Logical formLearned from11 sentences. A pesticide may undergo concentration.Logical formLearned from11 sentences.