Concentrations may build_up.Logical formLearned from5 sentences. A (nazi concentration camp) may undergo a liberation.Logical formLearned from5 sentences. A proposal may include concentration of design.Logical formLearned from5 sentences. A male may lose a bit of concentration.Logical formLearned from5 sentences. Persons may lack concentration.Logical formLearned from5 sentences. Authorities may observe concentrations of troops.Logical formLearned from5 sentences. Concentration can be by a male.Logical formLearned from5 sentences. Concentration can be in games.Logical formLearned from5 sentences. A person may keep concentration.Logical formLearned from5 sentences. Concentrations of (methane gas) may endanger (rescue workers).Logical formLearned from5 sentences. Militants may undergo concentration.Logical formLearned from5 sentences. (Animal feed) may contain concentrations of dioxin.Logical formLearned from5 sentences. Terms can be against (energy market concentration).Logical formLearned from5 sentences. (Concentration camps) may turn a male.Logical formLearned from5 sentences. Militants may undergo concentrations.Logical formLearned from5 sentences.