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:2021-09-14, Stock:PFE, The news for the past five days is as follows:
2021-09-07: NEWS1: Doctor: 'Vaccines are the best form of protection' as U.S. hits 40M COVID-19 cases.NEWS2: 'It's game over. It's mRNA or nothing:' Expert on future of vaccines.NEWS3: 75% of U.S. adults have taken at least one dose of COVID-19 vaccine - CDC.NEWS4: ‘Vaccination is still working incredibly well as bolstering our immune response to Covid’: Doctor.NEWS5: Unvaccinated people are the majority being admitted to the hospital: University Hospital CEO.NEWS6: Vaccine Booster Will Be Ready for FDA Approval, Fauci Says.NEWS7: Morning Brief: Unemployment down and pay up, as Delta variant stalls growth.NEWS8: Here's when Pfizer Covid-19 vaccine boosters could be available.NEWS9: Normalcy delayed as Delta variant surges through the fall.NEWS10: UPDATE 3-Biden to outline plan to curb coronavirus Delta variant as cases grow.NEWS11: Pfizer Invites Public to Listen to Two Webcasts of Pfizer Discussions at Upcoming Healthcare Conferences.NEWS12: 4 Big Drugmaker Stocks to Watch Out For as Recovery Gains Steam.NEWS13: 10 Words From Dr. Fauci That Make Me Optimistic About Moderna's Booster, Even If It's Delayed.NEWS14: Covid Vaccine Efficacy Numbers, Explained.NEWS15: Moderna Stock Slips As Fauci Cautions Booster May Not Be Ready By Sept. 20 Deadline.NEWS16: Boeing Falls Premarket; AMC Entertainment, Match Group Rise.
2021-09-08: NEWS1: Pfizer (PFE) Dips More Than Broader Markets: What You Should Know.NEWS2: Delta variant 'extraordinarily dangerous' for unvaccinated and 'a problem' for vaccinated: Doctor.NEWS3: U.S. administers nearly 377 mln doses of COVID-19 vaccines - CDC.NEWS4: ‘If you don’t get vaccinated, you will get Covid at this point’: Doctor.NEWS5: Tap the Nasdaq Rally With These Two Leveraged ETFs.NEWS6: U.S. Deaths From Coronavirus Surpass 650,000.NEWS7: Ascendis (ASND) Seeks FDA Nod for New Immunotherapy Study.NEWS8: Merck's (MRK) Keytruda Gets Nod for Expanded Use in China.NEWS9: Why Curis Stock Perked Up in August.NEWS10: Erasca Announces Clinical Trial Collaboration and Supply Agreement with Pfizer to Evaluate ERAS-007 and Encorafenib Combination.NEWS11: Moderna Beats Pfizer by This 1 Measure. Here's Why Pfizer Investors Shouldn't Worry..
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.

Answer: Rise