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:2019-12-09, Stock:PFE, The news for the past five days is as follows:
2019-12-02: NEWS1: AstraZeneca's (AZN) Imfinzi Gets FDA Priority Tag for SCLC.NEWS2: Heart Drugs Are Having a Moment.
2019-12-03: NEWS1: Mylan (MYL) Launches Herceptin Biosimilar Ogivri in the US.NEWS2: Gene-Therapy Firm Audentes Sells for Double Its Share Price. It Could Be the First of Many More Deals..NEWS3: Merck's Keytruda Gets FDA's Priority Tag in Bladder Cancer.NEWS4: Large-Cap Pharmaceuticals Industry Prospects Bright for 2020.
2019-12-04: NEWS1: Bayer and Teva Double Down on Worst M&A Deals of Decade.NEWS2: Pfizer/Astellas Xtandi Gets Nod in China for Prostate Cancer (Revised).
2019-12-05: NEWS1: Dow Jones Today: Trade Influenced Stocks More Than Impeachment News.NEWS2: The biggest deals and attempted deals of the 2010s .NEWS3: Bristol-Myers' Orencia Gets Breakthrough Therapy Tag for GvHD.
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.

Answer: Rise