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:2021-09-16, Stock:PFE, The news for the past five days is as follows:
2021-09-09: NEWS1: Norfolk State University President on its vaccine incentive program .NEWS2: UPDATE 1-Italy approves booster COVID-19 shots for vulnerable groups.NEWS3: U.S. administers 377.6 mln doses of COVID-19 vaccines - CDC.NEWS4: Covid vaccine potentially causing infertility is a ‘complete myth’ at this point: Doctor.NEWS5: Moderna Could Follow Pfizer With A Covid Shot Approval — But Is Moderna Stock A Buy?.NEWS6: Erasca (ERAS) Inks Deal With Pfizer for Colorectal Cancer Study.NEWS7: Why the U.K. Drug Regulator Approved Booster Shots—but the U.S. Is Still Deciding.NEWS8: Why eFFECTOR Therapeutics Stock Is Heating Up Today.NEWS9: Why Atea Could Be the Frontrunner in the Covid Antiviral Race.NEWS10: IBD/TIPP Poll Shows Huge Booster Interest; Why Pfizer Might Beat Moderna To The Punch.NEWS11: UPDATE 1-UK approves COVID-19 boosters but final decision on programme still pending.NEWS12: UK medicine regulator says Pfizer, AstraZeneca COVID-19 shots may be used as boosters.NEWS13: Myovant Sciences and Pfizer Announce FDA Acceptance of Supplemental New Drug Application for MYFEMBREE® for the Management of Moderate to Severe Pain Associated With Endometriosis.NEWS14: Vaccine Makers Up as Biden May Make Shots for Federal Staff a Must.NEWS15: Pfizer: Best Big Pharma Play in the Market?.NEWS16: UK’s MHRA Grants Marketing Authorisation for Pfizer’s CIBINQO® (abrocitinib) for Adults and Adolescents With Moderate to Severe Atopic Dermatitis.NEWS17: Why Moderna Boosters May Not Be Available as Soon as Pfizer-BioNTech Boosters.NEWS18: UPDATE 1-New Zealand buys Pfizer COVID-19 vaccines from Spain.
2021-09-10: NEWS1: FDA Sees Covid Shots For Kids 'In The Coming Months,' But Stocks Stumble.NEWS2: 3 Stocks Under $100 to Buy and Hold Forever.NEWS3: U.S. administers 378.6 mln doses of COVID-19 vaccines - CDC.NEWS4: UPDATE 1- COVID-19 vaccines hold strong against Delta, protection waning in older adults.NEWS5: FDA Says Strong Safety Data A Must For COVID-19 Vaccine Approval For Kids.NEWS6: Decoding Mu Variant: The Next Big Threat in COVID-19 Cases?.NEWS7: COVID-19 vaccines hold strong against Delta, protection waning in older adults.NEWS8: UPDATE 1-U.S. FDA may authorize COVID-19 vaccine for kids based on two months of safety data.NEWS9: ‘Traditional banking might not be the right path for us’: Rocket CEO.NEWS10: Biden’s vaccine mandate meets mixed reaction from unions.NEWS11: BioNTech Prepares To Launch COVID-19 Shot For 5 to11 Year Old: Reuters.NEWS12: 'There should be a vaccine mandate for all businesses,' doctor argues.NEWS13: U.S. FDA says robust safety data needed before COVID-19 vaccine approval for kids.NEWS14: Myovant (MYOV), Pfizer sNDA for Myfembree Accepted by the FDA.NEWS15: 'If you are getting federal funding, there should be a vaccine mandate': Doctor.NEWS16: Pharma Stock Roundup: SNY to Buy Kadmon, New Approvals for AZN & MRK's Drugs.NEWS17: Could This Be Pfizer's Next Blockbuster Vaccine?.NEWS18: UPDATE 1-BioNTech to seek approval soon for vaccine for 5-11 year olds-Spiegel.NEWS19: Will There Be 6-Month or 8-Month COVID Boosters?.NEWS20: Here's the Next Blockbuster Vaccine Opportunity for Pfizer.NEWS21: BioNTech to seek approval soon for vaccine for 5-11 year olds-Spiegel.
2021-09-13: NEWS1: Why Moderna, Pfizer, and Other Vaccine Stocks Dropped Today.NEWS2: 'The key game changer in all of this is getting people vaccinated': Doctor.NEWS3: How the AHEAD100 Initiative is working to prevent future pandemics.NEWS4: US STOCKS-S&P 500 snaps losing streak with tax hikes, inflation data on horizon.NEWS5: Moderna, BioNTech Plunge As Key Officials Argue Against Covid Booster Shots.NEWS6: Florida turns to Covid-detecting dogs amid surging cases   .NEWS7: COVID SCIENCE-mRNA vaccines not linked to miscarriage; COVID-19 shots in U.S. still protect against severe disease.NEWS8: NYC has a good plan so far for keeping kids safe as they return to the classroom: Doctor.NEWS9: Novavax (NVAX) Stock Surges YTD as COVID Vaccine Advances Well.NEWS10: Pfizer Stock Falters As It Prepares To Roll Out Boosters — Is It A Buy?.NEWS11: We aren’t seeing sufficient evidence to recommend COVID booster shots: Doctor.NEWS12: Will COVID-19 Vaccines for Children be Available by Year-End?.NEWS13: UPDATE 3-England to offer COVID vaccine to all 12- to 15-year-olds.NEWS14: The U.S. Is Debating a Third Vaccine Dose. Israel Is Talking About a Fourth..NEWS15: Pfizer Stock Active; Covid Vaccine Could Get FDA Nod for Kids by Halloween.NEWS16: Pfizer Stock Gains On Reports COVID Vaccine Could Get FDA Nod For Kids By Halloween.NEWS17: Israel weighing fourth round of coronavirus vaccines: report.NEWS18: Stocks Gain, China Cracks Down on Tech and Kids May Soon Get COVID Vaccine - 5 Things To Know.
2021-09-14: NEWS1: Pfizer (PFE) Gains As Market Dips: What You Should Know.NEWS2: Pfizer CEO Expects Covid Vaccine Data In Babies, Young Children Next Month.NEWS3: Pfizer Chart Says Buy the Dip; Vaccine Trends Bode Well for Bulls.NEWS4: Brussels lobbyists waged war against Pfizer jab in favour of European rivals.NEWS5: 3 Crash-Ready Stocks to Buy in September.NEWS6: Vaccine makers Moderna and BioNTech are significantly overvalued, say analysts.NEWS7: UPDATE 5-UK plans COVID boosters for over 50s to cope with "bumpy" winter.NEWS8: 5 Top-Ranked Large-Cap Stocks That Have Skyrocketed YTD.NEWS9: Minty Fresh Breadth, Market Streaks, Inflation, Vaccine Plays, An AMD Warning.NEWS10: U.S. administers 380.8 mln doses of COVID-19 vaccines - CDC.NEWS11: When can kids under 12 get a COVID-19 vaccine? CDC Director Rochelle Walensky has an answer.
2021-09-15: NEWS1: Moderna President details new clinical data on COVID-19 vaccine.NEWS2: U.S. administers 382.3 mln doses of COVID-19 vaccines - CDC.NEWS3: Dow Jones Rises As Nasdaq Rallies; Tesla Gains Despite Losing This Race; BioNTech Gets Vaccine Boost.NEWS4: Could Top-Rated BioNTech Score Again As FDA Preps To Debate Boosters?.NEWS5: Moderna seeks to join Pfizer in U.S. booster push.NEWS6: CORRECTED-Moderna says COVID-19 vaccine protection wanes, makes case for booster.NEWS7: Biden meets with CEOs, business leaders on vaccine mandates.NEWS8: Exact stock surges as changes to Pfizer's sales agreement a 'positive,' analyst says.NEWS9: Doctor on Biden’s vaccine mandate: ’Extraordinary times call for extraordinary measures’.NEWS10: FDA Stays Neutral on Covid Boosters. A Showdown Is Brewing..NEWS11: FDA’s Noncommittal Take on Covid Boosters Sets Stage for Fraught Meeting.NEWS12: Why Moderna stock has been in rally mode this month.NEWS13: BioNTech Stock Pops: What You Need To Know As FDA Debates Covid Boosters.NEWS14: Pfizer Points to Waning Immunity in Need for Booster Shots.NEWS15: FDA says COVID-19 vaccines continue to protect people in the U.S. from severe disease.NEWS16: Why Pfizer Stock Is Moving Higher Today.NEWS17: Alaska joins Idaho in rationing health care as hospitals are packed with COVID patients, and WHO says Africa is being left behind in vaccine push.NEWS18: UPDATE 4-FDA staff say Pfizer COVID-19 boosters may not be needed, but do improve immunity.NEWS19: Pfizer cites 'totality' of clinical data in bid for COVID-19 booster approval.NEWS20: Enough Hand-Wringing Over the Science. Bring on the Boosters..NEWS21: Pfizer says third COVID-19 shot warranted in FDA document.NEWS22: Vaccines for Children Are Moving Closer. Pfizer Will Seek FDA Go-Ahead Next Month..NEWS23: 2 Best Biotech Stocks to Buy in September.NEWS24: Pfizer expects to have safety and efficacy data for its COVID-19 vaccine in children in late September.NEWS25: Pfizer Makes Case for Vaccine Booster in FDA Presentation.NEWS26: 5 Stocks To Watch For September 15, 2021.NEWS27: U.S. Army says soldiers who refuse COVID-19 vaccine could be dismissed.

Answer: Decrease