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:2020-04-28, Stock:PFE, The news for the past five days is as follows:
2020-04-21: NEWS1: Here's Why We Think Pfizer (NYSE:PFE) Is Well Worth Watching.
2020-04-22: NEWS1: EU clears Mylan's purchase of Pfizer's Upjohn unit with conditions.NEWS2: Pfizer Rises on Nod to Start First In-Human COVID-19 Vaccine Trial in Germany.NEWS3: Healthcare ETFs Looks Strong Ahead of Q1 Earnings.NEWS4: The Dow's bounce is so far unanimous, with all 30 stocks gaining ground.NEWS5: The Daily Biotech Pulse: Immunic To Develop COVID Treatment, Gilead Strikes IO Partnership.NEWS6: U.S. Was Hit Earlier Than Thought; Singapore Surge: Virus Update.NEWS7: It'll be months before coronavirus vaccine is ready - German minister.NEWS8: Germany approves first trial of COVID-19 vaccine candidate.NEWS9: BioNTech and Pfizer announce regulatory approval from German authority Paul-Ehrlich-Institut to commence first clinical trial of COVID-19 vaccine candidates.
2020-04-23: NEWS1: Pfizer (PFE) Gains As Market Dips: What You Should Know.NEWS2: Were Hedge Funds Right About Pfizer Inc. (PFE)?.NEWS3: 'We're going to be in a lot of trouble' if we roll back coronavirus restrictions: Johns Hopkins doctor.NEWS4: Pfizer Hosts Virtual-Only Annual Meeting of Shareholders.NEWS5: Pfizer/BioNTech to Begin Coronavirus Vaccine Study in Germany.NEWS6: What's in the Cards for Pfizer (PFE) This Earnings Season?.NEWS7: Cambridge vaccine startup raises $120M as Covid-19 spotlights need.NEWS8: Centogene Reports Financial Results For Full Year 2019 and Highlights Recent Progress.
2020-04-24: NEWS1: Home Depot, Apple Inc. share gains lead Dow's 75-point jump.NEWS2: Will Pfizer's (PFE) BioPharma Unit Q1 Earnings Increase?.NEWS3: Pharma Stock Roundup: Q1 Earnings of LLY, Coronavirus Update from PFE, NVS, AZN.
2020-04-27: NEWS1: Dow Jones Futures: Key Earnings Results From Alphabet, AMD May Drive Stock Market Rally; Tesla Falls After Breakout.NEWS2: Dow Jones Futures Lower Ahead Of Key Earnings Results From Alphabet, AMD; Tesla Tumbles After Breakout.NEWS3: Big Drug Stock Q1 Earnings Due on Apr 28: MRK, PFE and NVS.NEWS4: Home Depot, JPMorgan Chase share gains lead Dow's 75-point jump.NEWS5: Apple And Amazon Earnings, Fed Meeting Among Highlights In Busy Week Ahead.NEWS6: AbbVie Stock Is Forming A New Base — But Is It A Safe Buy Amid Pandemic?.NEWS7: What To Watch For In Pfizer’s 1Q20 Earnings Tomorrow.

Answer: Decrease