Concentrations can be prolonged.Logical formLearned from7 sentences. Variations can be in concentrations.Logical formLearned from7 sentences. Substrates may undergo concentration.Logical formLearned from7 sentences. A dose may undergo concentration.Logical formLearned from7 sentences. Some credits can be constituted-of-or-filled-with (concentration courses).Logical formLearned from7 sentences. A wall may pertain-to a (concentration camp).Logical formLearned from7 sentences. Herbicides may undergo concentrations.Logical formLearned from7 sentences. (Blood concentrations) may pertain-to a drug.Logical formLearned from7 sentences. A mineral may undergo concentration.Logical formLearned from7 sentences. Concentrations can be minuscule.Logical formLearned from7 sentences. Concentrations can be in a tissue.Logical formLearned from7 sentences. A (calcium ion concentration) can be intracellular.Logical formLearned from7 sentences. Prey may undergo concentrations.Logical formLearned from7 sentences. Concentration can be on a deity.Logical formLearned from7 sentences. Indigenous persons may undergo concentration.Logical formLearned from7 sentences.