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:2019-12-13, Stock:PFE, The news for the past five days is as follows:
2019-12-06: NEWS1: Pharma Stock Roundup: FDA Updates for RHHBY, AZN, MRK, No Asbestos in Talc Says JNJ.NEWS2: Glaxo Files NDA for Fostemsavir for Heavily Pre-Treated HIV.NEWS3: Acquisition Rumors Aren’t the Only Thing Moving Amarin Stock.NEWS4: After Biogen's big Alzheimer's drug data reveal, observers remain divided.
2019-12-09: NEWS1: Flagging French Drug Giant Tries a Familiar Remedy.NEWS2: Sanofi’s New CEO Is Aiming for a Narrower Focus in Drug Development.NEWS3: Biotech stocks are producing outsized gains — here’s how to get your share.NEWS4: Amgen Gets FDA Approval for J&J/Merck's Remicade Biosimilar.
2019-12-10: NEWS1: Dow Jones Today: Stocks Suffered From a Distinct Lack of Excitement.NEWS2: The Daily Biotech Pulse: ASH Meeting Wraps, Fast Track Designation For Equillium, Pfizer To Buy $3M In ContraFect Shares.
2019-12-11: nan
2019-12-12: NEWS1: FDA Approves XELJANZ® XR (tofacitinib) Extended-Release Tablets for the Treatment of Ulcerative Colitis.NEWS2: Iterum Down as Sulopenem Antibiotic Fails in Phase III Study.NEWS3: Big Pharma’s Coming Back in 2020. Don’t Hold Your Breath for Generic Drug Stocks.

Answer: Decrease