Concentration can be for a moment.Logical formLearned from9 sentences. Bones may undergo concentration.Logical formLearned from9 sentences. Profits may undergo concentration.Logical formLearned from9 sentences. Concentration can be in film.Logical formLearned from9 sentences. Concentrations can be in a body.Logical formLearned from9 sentences. Fluorine may undergo concentrations.Logical formLearned from9 sentences. A visit can be to a (concentration camp).Logical formLearned from9 sentences. Concentration may pertain-to a language.Logical formLearned from9 sentences. Concentration can be in a brain.Logical formLearned from9 sentences. Concentration can be theoretical.Logical formLearned from9 sentences. Acetaldehyde may undergo concentrations.Logical formLearned from9 sentences. Experiences can be in (concentration camps).Logical formLearned from9 sentences. Places can be constituted-of-or-filled-with concentration.Logical formLearned from9 sentences. A hazardous substance may undergo concentration.Logical formLearned from9 sentences. Studies may undergo concentration.Logical formLearned from9 sentences.