Schools can be with concentrations of (minority students).Logical formLearned from5 sentences. Histamine may undergo concentrations.Logical formLearned from5 sentences. Antibiotics may undergo concentrations.Logical formLearned from5 sentences. Magnetic flux may undergo concentrations.Logical formLearned from5 sentences. Concentrations can be in (surface soils).Logical formLearned from5 sentences. Radionuclides may undergo concentrations.Logical formLearned from5 sentences. (Credit hours) may undergo concentration.Logical formLearned from5 sentences. (Enemy fire) may undergo concentration.Logical formLearned from5 sentences. Concentrations can be in some cases.Logical formLearned from5 sentences. International relations can be with concentration.Logical formLearned from5 sentences. A trend can be in concentrations.Logical formLearned from5 sentences. Odor may provide a warning of concentrations.Logical formLearned from5 sentences. 2-butanone may undergo concentrations.Logical formLearned from5 sentences. Antimonies may undergo concentrations.Logical formLearned from5 sentences. (Vinyl chloride) may undergo concentration.Logical formLearned from5 sentences.