An effect can be on concentration.Logical formLearned from6 sentences. Concentration can be unfair.Logical formLearned from6 sentences. Concentration can be in a body.Logical formLearned from6 sentences. Reactant may undergo concentration.Logical formLearned from6 sentences. Concentrations can be parts.Logical formLearned from6 sentences. Concentration can be in the south.Logical formLearned from6 sentences. Concentration may pertain-to a borough.Logical formLearned from6 sentences. A prisoner can be at a (concentration camp).Logical formLearned from6 sentences. Persons may need concentration of risk.Logical formLearned from6 sentences. Counties may undergo concentration.Logical formLearned from6 sentences. Gangs may undergo concentration.Logical formLearned from6 sentences. (Concentration camps) can be horrible.Logical formLearned from6 sentences. Concentration can be in a city.Logical formLearned from6 sentences. Concentration can be in a nation.Logical formLearned from6 sentences. Houses may undergo concentration.Logical formLearned from6 sentences.