A progression can be to death.Logical formLearned from5 sentences. Progression of multiple sclerosis may be approved by a government-agency.Logical formLearned from5 sentences. A progression can be vital.Logical formLearned from5 sentences. Pathology may undergo a progression.Logical formLearned from5 sentences. A progression can be graded.Logical formLearned from5 sentences. Progression can be to death.Logical formLearned from5 sentences. A progression can be speedy.Logical formLearned from5 sentences. Subjects may undergo a progression.Logical formLearned from5 sentences. A cell may undergo a progression.Logical formLearned from5 sentences. A paralysis may undergo a progression.Logical formLearned from5 sentences. Years may undergo a progression.Logical formLearned from5 sentences. A complication may undergo a progression.Logical formLearned from5 sentences. Type may undergo a progression.Logical formLearned from5 sentences. A natural progression may pertain-to a program.Logical formLearned from5 sentences. Birds may undergo a progression.Logical formLearned from5 sentences.