A progression can be in a year.Logical formLearned from3 sentences. Differences can be in (asthma progression).Logical formLearned from3 sentences. (Tumor growth) may undergo a progression.Logical formLearned from3 sentences. Progressions can be beautiful.Logical formLearned from3 sentences. Reasoning may undergo a progression.Logical formLearned from3 sentences. Progressions can be sophisticated.Logical formLearned from3 sentences. A natural progression can be for a band.Logical formLearned from3 sentences. A natural progression may pertain-to a civilization.Logical formLearned from3 sentences. Progression can be to stages.Logical formLearned from3 sentences. Comments may undergo a progression.Logical formLearned from3 sentences. An (animal model) may mirror progression of a disease.Logical formLearned from3 sentences. A person may know a progression.Logical formLearned from3 sentences. Persons may have a progression of lessons.Logical formLearned from3 sentences. A progression can be over some years.Logical formLearned from3 sentences. A clue can be about a (chord progression).Logical formLearned from3 sentences.