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:2019-12-31, Stock:PFE, The news for the past five days is as follows:
2019-12-23: NEWS1: Pfizer (PFE) Outpaces Stock Market Gains: What You Should Know.NEWS2: GlaxoSmithKline's Long-Acting HIV Regimen Gets CRL From FDA.NEWS3: Bristol-Myers' Revlimid Combo Gets EU Nod for New Indication.NEWS4: Theravance Biopharma and Pfizer Inc. Enter Global License Agreement for Skin-Targeted, Locally-Acting Pan-Janus Kinase (JAK) Inhibitor Program.
2019-12-24: NEWS1: Year in Review: Mylan NV to become one of largest in its field.NEWS2: Mylan, Micro Labs receive FDA approval to market generic Eliquis.NEWS3: BioMarin Files BLA for Gene Therapy to Treat Hemophilia A.
2019-12-26: NEWS1: Epizyme (EPZM) Shares Soar on Lead Candidate's Progress.NEWS2: How Did Pfizer Inc. (PFE) Compare Against Hedge Fund Darlings in 2019?.
2019-12-27: NEWS1: Roche and Gilead Losing Patent Protection on Top Sellers.NEWS2: Pfizer (PFE) Sees a Difficult 2019: Can it Rebound in 2020?.NEWS3: Is Mylan (MYL) Doomed to Witness a Terrible 2020 Too?.NEWS4: Pfizer Is a Top Stock for 2020. Here’s Why..
2019-12-30: NEWS1: US Indexes Close Lower Monday.NEWS2: Urbem's 'Wonderful Business' Series: Waters.NEWS3: Astellas Acquires Xyphos to Boost Immuno-oncology Pipeline.

Answer: Rise