Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2019-10-21, Stock:PFE, The news for the past five days is as follows:
2019-10-14: NEWS1: Pfizer (PFE) Gains As Market Dips: What You Should Know.NEWS2: Johnson and Johnson Stock Still Significantly Undervalued.NEWS3: The Zacks Analyst Blog Highlights: Novartis, J&J, Pfizer, Novo Nordisk and Glaxo.NEWS4: Lilly Gets FDA Approval for New Oral Tablets for Migraine.NEWS5: Why cell therapies are cancer's next frontier.NEWS6: Market Morning: Economists Say Spend More, Viagra For Leukemia, Aerospace Mergers.NEWS7: ImaginAb signs multi-party collaboration agreement with three global pharmaceutical companies to help further develop company's CD8 ImmunoPET technology.
2019-10-15: NEWS1: Health savings accounts provide benefits, tax advantages.
2019-10-16: NEWS1: Viagra Inventor Raises Funds to Test AI-Generated Treatments.
2019-10-17: NEWS1: Top Stock Reports for Johnson & Johnson, Boeing & Pfizer.NEWS2: Can New Drugs Help Lilly (LLY) to Deliver Solid Q3 Earnings?.NEWS3: PFE vs. NVO: Which Stock Is the Better Value Option?.NEWS4: Fitbit stock gains after company announces biotech partnership.NEWS5: Fitbit's plan to beat Apple in personal health.
2019-10-18: NEWS1: The Zacks Analyst Blog Highlights: Johnson & Johnson, Boeing, Pfizer, Qualcomm and Mitsubishi UFJ Financial.NEWS2: Factors Setting the Tone for Novartis' (NVS) Q3 Earnings.

Answer: Rise