A progression may pertain-to a group.Logical formLearned from2 sentences. Cad may undergo a progression.Logical formLearned from2 sentences. A progression can be for a group.Logical formLearned from2 sentences. A factor can be in a progression of a disease.Logical formLearned from2 sentences. A (chord progression) can be exciting.Logical formLearned from2 sentences. Acne may undergo a progression.Logical formLearned from2 sentences. A play may undergo a progression.Logical formLearned from2 sentences. A progression may require comment.Logical formLearned from2 sentences. A progression can be swift.Logical formLearned from2 sentences. (Memory loss) may undergo a progression.Logical formLearned from2 sentences. A person may think about a progression.Logical formLearned from2 sentences. An one can be a progression.Logical formLearned from2 sentences. Names may undergo a progression.Logical formLearned from2 sentences. Experience may undergo a progression.Logical formLearned from2 sentences. A progression can be recursive.Logical formLearned from2 sentences.