A trailblazer can be for a progression of writers.Logical formLearned from1 sentences. Writers may undergo a progression.Logical formLearned from1 sentences. A person may figure_out (chord progressions).Logical formLearned from1 sentences. A natural progression can be from a kind of art.Logical formLearned from1 sentences. Art can be a natural progression.Logical formLearned from1 sentences. A vaccine may slow progression of tumors.Logical formLearned from1 sentences. An album may reflect a progression of a band.Logical formLearned from1 sentences. A progression can be into a company.Logical formLearned from1 sentences. Chemicals may change with (tumor progression).Logical formLearned from1 sentences. Some chemicals may increase during (prostate cancer progression).Logical formLearned from1 sentences. Gardeners may notice progressions.Logical formLearned from1 sentences. A progression can be lovely.Logical formLearned from1 sentences. A week can be about progression.Logical formLearned from1 sentences. Progressions may be charted.Logical formLearned from1 sentences. An effect can be on a progression of dementia.Logical formLearned from1 sentences.