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:2021-09-13, Stock:PFE, The news for the past five days is as follows:
2021-09-03: NEWS1: 'We don’t quite know yet' if everyone will need COVID-19 booster shot: Doctor.NEWS2: Vaccine Stocks Rise Despite Pushback Threatening To Derail Booster Shot Plan.NEWS3: Wana Brands, Medicine Man Dispensaries, Colorado Health Authorities Team Up On COVID-19 Vaccination Clinics.NEWS4: U.S. administers 373.5 mln doses of COVID-19 vaccines - CDC.NEWS5: This week in Bidenomics: Delta blues.NEWS6: A large prevalence rate of the virus is going to affect everyone: Doctor.NEWS7: Vaccine Stocks Diverge As Pushback Threatens To Derail Booster Shot Plan.NEWS8: UPDATE 4-U.S. COVID-19 booster shot campaign to start with only Pfizer - source.NEWS9: Moderna says lower booster dose could free up a billion doses.NEWS10: Government health officials tell White House to scale back booster plan: report.NEWS11: 10 High Yield Monthly REIT Dividend Stocks to Buy.NEWS12: Fauci defends vaccine boosters, Moderna seeks FDA approval of booster.NEWS13: Fauci says mu variant isn’t an ‘immediate threat’ to U.S. as delta remains dominant coronavirus strain.NEWS14: Fauci says mu variant of coronavirus not an ‘immediate threat’ to U.S. as delta remains dominant.NEWS15: UPDATE 2-UK panel advise against COVID vaccines for healthy 12- to 15-year-olds.NEWS16: Pharma Stock Roundup: New Warning Order by FDA for JAK Drugs, & Pipeline Updates.NEWS17: Pfizer (PFE) Begins Study on RSV Vaccine in Older Adults.NEWS18: 10 Best-Performing Countries for COVID-19 Vaccinations.NEWS19: UPDATE 3-EU reviewing risk of rare inflammation after COVID-19 vaccinations.NEWS20: EU reviewing cases of rare body inflammation after COVID-19 shots.NEWS21: 3 Healthcare Stocks Cathie Wood Loves Right Now.NEWS22: Here's What the U.S. Booster Plan Means for Pfizer and Moderna.NEWS23: Here's the Biotech Pfizer Should Consider Acquiring Next.NEWS24: UPDATE 3-Australian PM seeks quicker reopening after COVID-19 vaccine swap with Britain.
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.

Answer: Decrease