Experiments may undergo a progression.Logical formLearned from4 sentences. Progression can be normal.Logical formLearned from4 sentences. Areas may undergo a progression.Logical formLearned from4 sentences. Progression can be in (drug use).Logical formLearned from4 sentences. Length may undergo progressions.Logical formLearned from4 sentences. (Career progression) can be important.Logical formLearned from4 sentences. Durations may undergo a progression.Logical formLearned from4 sentences. A progression can be through life.Logical formLearned from4 sentences. A progression can be visible.Logical formLearned from4 sentences. A progression may increase.Logical formLearned from4 sentences. A progression can be common.Logical formLearned from4 sentences. Evil may undergo a progression.Logical formLearned from4 sentences. (Liver damage) may undergo a progression.Logical formLearned from4 sentences. Dysplasia may undergo a progression.Logical formLearned from4 sentences. (Lung damage) may undergo a progression.Logical formLearned from4 sentences.