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:2020-05-15, Stock:PFE, The news for the past five days is as follows:
2020-05-08: NEWS1: Pfizer to outsource some drug production, focus on coronavirus vaccine.NEWS2: Pfizer to outsource some drug production, focus on coronavirus vaccine.NEWS3: Pfizer to outsource some drug production, focus on coronavirus vaccine.NEWS4: Pfizer to outsource some drug production, focus on coronavirus vaccine.NEWS5: Stocks jump despite a record 20.5M jobs lost in April  .NEWS6: This PayPal Options Move Is Better Than Cash.NEWS7: ICU Medical Inc (ICUI) Q1 2020 Earnings Call Transcript.NEWS8: Pharma Stock Roundup: Q1 Earnings of BMY, NVO, Coronavirus Update From PFE, RHHBY.NEWS9: Nektar's (NKTR) Q1 Earnings and Revenues Top Estimates.NEWS10: Pfizer Invites Public to View and Listen to Webcast of May 15 Conference Call with Analysts to Review Duchenne Muscular Dystrophy (DMD) Data Presentation at ASGCT 2020 Annual Meeting.
2020-05-11: NEWS1: US Indexes Post Some Gains Monday.NEWS2: Dow ends 100 points lower, leaving stock benchmarks mixed amid skepticism over re-openings.NEWS3: Health-care ETFs rise as coronavirus treatments take center stage.NEWS4: Mylan (MYL) Beats on Q1 Earnings on Coronavirus-Led Stockpiling.NEWS5: Mylan's stock gains 2%; guidance for 2020 reaffirmed.NEWS6: Mylan's stock gains 2%; guidance for 2020 reaffirmed.NEWS7: Mylan first-quarter revenue jumps 5% on drug stockpiling.NEWS8: AbbVie Wraps Its $63 Billion Allergan Buyout — Is AbbVie Stock A Buy?.
2020-05-12: NEWS1: Hedge Fund Tells Alexion Management to Sell Company.NEWS2: MEDIA-Pfizer wants to expand human trials of coronavirus vaccine to thousands of people by September - CNBC.NEWS3: New Data from 18 Approved and Investigational Pfizer Medicines to be Showcased at ASCO20 Virtual Scientific Program.NEWS4: Pfizer Invites Public to Listen to Webcast of Pfizer Discussion at Healthcare Conference.NEWS5: Sarepta Investors Buckle Up for Pfizer’s DMD Gene Therapy Update.
2020-05-13: NEWS1: Save the Date: Pfizer Announces New Date of September 14, 2020 for Rescheduled Investor Day.NEWS2: Drug Sector Highly Resilient Amid Coronavirus Mayhem: 5 Picks.NEWS3: Biotech Companies Lead Search for Coronavirus Vaccine: 4 Winners.NEWS4: Pfizer Plans To Test Covid-19 Vaccine On Thousands Of Patients By September- Report.NEWS5: Pfizer Plans To Test Coronavirus Vaccine On Thousands Of Patients By September.
2020-05-14: NEWS1: The Zacks Analyst Blog Highlights: LLY, AZN, PFE, SNY and BMY.NEWS2: Coronavirus Vaccine Progress Accelerates.NEWS3: Three Dividend Growth Stocks We Recently Purchased for Our Portfolio.NEWS4: Relaxing the Lockdown: Move Slowly, Stay Nimble.NEWS5: Pfizer Announces Positive Top-Line Results From Phase 3 Lot Consistency Study of 20-Valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-Naive Adults 18 Through 49 Years of Age.

Answer: Decrease