Concentration can be on a face.Logical formLearned from127 sentences. Calcium may undergo concentration.Logical formLearned from126 sentences. Water may undergo concentration.Logical formLearned from124 sentences. An increase can be in concentration.Logical formLearned from124 sentences. Companies may undergo concentration.Logical formLearned from123 sentences. Acid may undergo concentration.Logical formLearned from122 sentences. Substances may undergo concentrations.Logical formLearned from122 sentences. Concentrations may pertain-to the world.Logical formLearned from120 sentences. Residents may undergo concentration.Logical formLearned from120 sentences. A site may pertain-to a (concentration camp).Logical formLearned from119 sentences. Concentrations can be chemical.Logical formLearned from119 sentences. Nitrate may undergo concentrations.Logical formLearned from119 sentences. A male may lose concentration.Logical formLearned from119 sentences. (Market power) may undergo concentration.Logical formLearned from118 sentences. Persons may lose concentration.Logical formLearned from117 sentences.