Concentration may come from a fact.Logical formLearned from4 sentences. A person may have concentration.Logical formLearned from4 sentences. Damages may undergo concentration.Logical formLearned from4 sentences. Colors may come from concentrations of algae.Logical formLearned from4 sentences. Concentration can be solemn.Logical formLearned from4 sentences. Atrocities can be in (concentration camps).Logical formLearned from4 sentences. An (energy infrastructure) may undergo concentration.Logical formLearned from4 sentences. A us-state may have concentration.Logical formLearned from4 sentences. Locals may undergo concentration.Logical formLearned from4 sentences. A brow can be dark with concentration.Logical formLearned from4 sentences. Concentrations can be in individuals.Logical formLearned from4 sentences. Concentrations may pose a (health risk).Logical formLearned from4 sentences. A part of a breath may have an (alcohol concentration).Logical formLearned from4 sentences. A face can be full of concentration.Logical formLearned from4 sentences. Citric acid may undergo concentration.Logical formLearned from4 sentences.