A request may undergo a progression.Logical formLearned from2 sentences. Industry may undergo a progression.Logical formLearned from2 sentences. A commission may dismiss a (progression theory).Logical formLearned from2 sentences. A progression can be to (heroin use).Logical formLearned from2 sentences. (Personality differences) can be causes of a progression to (heroin use).Logical formLearned from2 sentences. Variables may predict progression to illicit (drug use).Logical formLearned from2 sentences. A progression can be to tb.Logical formLearned from2 sentences. A degree can be a natural progression to a level.Logical formLearned from2 sentences. A natural progression can be to a level.Logical formLearned from2 sentences. A progression can be equable.Logical formLearned from2 sentences. A progression can be imperceptible.Logical formLearned from2 sentences. A progression can be in infinitum.Logical formLearned from2 sentences. A progression can be in some directions.Logical formLearned from2 sentences. A point can be for a progression.Logical formLearned from2 sentences. A natural progression may pertain-to a (labor movement).Logical formLearned from2 sentences.