A purification can be gradual.Logical formLearned from9 sentences. A type can be gradual.Logical formLearned from9 sentences. A fall can be gradual.Logical formLearned from9 sentences. A coevolution can be gradual.Logical formLearned from9 sentences. (Stabilization measures) can be gradual.Logical formLearned from9 sentences. A (deformation method) can be gradual.Logical formLearned from9 sentences. A ramp can be gradual.Logical formLearned from9 sentences. A titration can be gradual.Logical formLearned from9 sentences. A demolition can be gradual.Logical formLearned from9 sentences. Revelations can be gradual.Logical formLearned from9 sentences. A level can be gradual.Logical formLearned from9 sentences. A (market recovery) can be gradual.Logical formLearned from9 sentences. A tax can be gradual.Logical formLearned from9 sentences. A changeover can be gradual.Logical formLearned from9 sentences. An (emancipation plan) can be gradual.Logical formLearned from9 sentences.