Concentration can be desired.Logical formLearned from53 sentences. Ammonia may undergo concentration.Logical formLearned from53 sentences. Alcohol may undergo concentrations.Logical formLearned from53 sentences. (Sediment concentrations) can be suspended.Logical formLearned from53 sentences. Ammonia may undergo concentrations.Logical formLearned from53 sentences. Hydrogen may undergo concentration.Logical formLearned from53 sentences. Concentration can be equivalent.Logical formLearned from53 sentences. Benzene may undergo concentrations.Logical formLearned from53 sentences. Concentration can be in the atmosphere.Logical formLearned from53 sentences. A capacity can be for concentration.Logical formLearned from53 sentences. Concentrations can be effluent.Logical formLearned from53 sentences. Concentration can be exclusive.Logical formLearned from53 sentences. Concentrations can be outdoor.Logical formLearned from52 sentences. Mind may undergo concentration.Logical formLearned from52 sentences. (Ozone concentrations) can be high.Logical formLearned from52 sentences.