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:2021-09-28, Stock:PFE, The news for the past five days is as follows:
2021-09-21: NEWS1: Boosters And Mandate Could Increase Vaccine Demand.NEWS2: U.S. administers 386.8 mln doses of COVID-19 vaccines - CDC.NEWS3: Could natural COVID-19 immunity trump vaccine mandates?.NEWS4: Restricted Booster Access or Not, BioNTech Stock Is Way Overvalued, Says J.P. Morgan.NEWS5: Booster shots for those 75+ is a 'no-brainer': Doctor.NEWS6: Nektar, Merck Germany, Pfizer Join Forces For Mid-Stage Bladder Cancer Study.NEWS7: J&J announces promising COVID-19 booster data, delays on kids' vaccine trial.NEWS8: Pfizer's (PFE) COVID-19 Vaccine Successful in Children Study.NEWS9: J&J Says Its Booster Shot Works, but Its Vaccine Remains Effective Without a Second Dose.NEWS10: Company News for Sep 21, 2021.NEWS11: India govt won't buy Pfizer, Moderna vaccines amid local output -sources.NEWS12: J&J says second shot boosts protection for moderate-severe COVID-19 to 94%.NEWS13: The Smartest Stocks to Buy With $1,000 Right Now.NEWS14: Is Pfizer Stock a Buy After an FDA Panel Recommended Boosters for Ages 65 and Up?.NEWS15: J&J Gains on Claims Its Booster Shot Raises Immunity Against Covid.NEWS16: Johnson & Johnson Says Second COVID Vaccine Dose Boosts Overall Efficacy To 94%.
2021-09-22: NEWS1: FDA backs Pfizer COVID-19 boosters for seniors and those at high risk.NEWS2: UPDATE 1-Brazil regulator says adolescent death unrelated to Pfizer shot.NEWS3: UPDATE 4-U.S. FDA clears Pfizer COVID-19 booster for older and at-risk Americans.NEWS4: U.S. administers 387.5 mln doses of COVID-19 vaccines - CDC.NEWS5: Whether the FDA approves a COVID-19 booster shot or not, Pfizer and Moderna have already made their money.NEWS6: UPDATE 1-U.S. CDC advisers could vote on Pfizer COVID-19 vaccine booster on Thursday.NEWS7: If we’re to get out of this pandemic it’ll require a global response: Doctor.NEWS8: Russian vaccine tourism catches on after Sputnik V hits WHO snag.NEWS9: J&J's (JNJ) New Data Shows COVID-19 Booster Ups Protection.NEWS10: Nektar (NKTR) Signs Deals With Pfizer, Merck KGaA for NKTR-255.NEWS11: Global tally of COVID-19 cases nears 230 million, as Biden convenes virtual pandemic summit and doubles U.S. purchase of Pfizer vaccine.NEWS12: U.S. CDC advisers could vote on Pfizer COVID-19 vaccine booster on Thursday.NEWS13: CDC Committee Will Consider Pfizer Booster. What to Know..NEWS14: UPDATE 4-Under pressure, U.S. donates half billion more COVID-19 vaccine doses to world.NEWS15: The Daily Biotech Pulse: Pfizer-BioNTech US Vaccine Contract, Summit Slumps On Adverse Regulatory Feedback, Cerevel CFO Departs.NEWS16: CDC committee to meet today and Thursday to again discuss BioNTech and Pfizer's COVID-19 booster.NEWS17: US To Donate Additional 500M Pfizer-BioNTech COVID-19 Vaccine Doses To Lower Income Nations.NEWS18: Biden doubling vaccine purchase, calls for more global shots.NEWS19: Pfizer, BioNTech to provide additional 500 million COVID-19 vaccine doses to U.S. government for donation.NEWS20: Pfizer and BioNTech Expand Collaboration with U.S. to Provide 500 Million Additional COVID-19 Vaccine Doses at Not-for-Profit Price for Donation to Poorest Countries.NEWS21: Biden pledges new vaccine donations in bid to rally global pandemic fight.NEWS22: ‘Absolutely’ a future where everyone's DNA sequenced at birth: 23andMe CEO.NEWS23: Moderna's COVID Vaccine Could Be Better Than Pfizer's -- Here's Why Its Stock Isn't.NEWS24: UK and South Korea agree COVID-19 vaccine swap deal.NEWS25: Doctor: Vaccines for kids is 'really the way forward'.
2021-09-23: NEWS1: CDC Panel Recommends Pfizer Covid-19 Boosters for Seniors, Certain Adults With Underlying Medical Conditions.NEWS2: Pfizer Nabs Booster OK In U.S. — But How Long Will It Hold The Covid Lead?.NEWS3: CDC Advisors Recommend Pfizer Booster Shots for Older Americans. What to Know..NEWS4: CDC Panel Backs Booster Shots; Federal Workers Sue: Virus Update.NEWS5: CDC recommends Pfizer/BioNTech boosters for certain segments of population.NEWS6: Will Pfizer ETFs Soar on FDA's COVID-19 Vaccine Booster Approval?.NEWS7: UPDATE 8-U.S. CDC backs COVID-19 boosters for high-risk adults, workers, elderly.NEWS8: Why BioNTech Thrashed the Market on Thursday.NEWS9: CDC panel backs Pfizer’s COVID-19 booster for seniors, high-risk adults.NEWS10: Panama approaching herd immunity against COVID-19, president says.NEWS11: UPDATE 1-EU drugs regulator to decide on Pfizer vaccine booster in early October.NEWS12: Moderna CEO says pandemic could be over in a year: Report.NEWS13: FDA approves booster shots, Facebook CTO steps down, White House’s chip shortage meeting.NEWS14: CDC to meet on boosters just hours after FDA authorized their use for seniors and high-risk individuals, as Africa slams U.K.’s travel rules.NEWS15: EU drugs regulator says to decide on Pfizer vaccine booster in early October.NEWS16: Pfizer (PFE) Booster Dose Gets FDA Nod for High-Risk People.NEWS17: Pfizer Invites Public to View and Listen to Webcast of Pfizer November 2 Conference Call with Analysts.NEWS18: Big Pharma Isn’t Done Rolling Out Covid Treatments.NEWS19: FDA Authorizes Pfizer Booster for Some Americans. The CDC’s Call on the Rollout Could Come Today..NEWS20: Pfizer Declares Fourth-Quarter 2021 Dividend.NEWS21: Anne Wojcicki on comparison to Elizabeth Holmes: ‘Theranos was never transparent’.NEWS22: Influencers with Andy Serwer: Anne Wojcicki.NEWS23: Pfizer, Salesforce and Darden Restaurants Rise Premarket; Rite Aid Falls.NEWS24: Pfizer Stock Higher As FDA Clears COVID Booster Shots For Older And At-Risk Americans.NEWS25: Stocks Gain As Fed Waits On Tapering, Pfizer Gets FDA Boosters Nod - 5 Things You Must Know.NEWS26: Pfizer Gains Premarket on FDA’s Nod to Covid-19 Booster for Higher-Risk Groups.NEWS27: Pfizer and BioNTech Receive First U.S. FDA Emergency Use Authorization of a COVID-19 Vaccine Booster.NEWS28: FDA Clears Covid-19 Booster Shots From Pfizer for High-Risk People.NEWS29: Whether COVID-19 boosters get approved or not, Pfizer and Moderna have already made their money.NEWS30: Pfizer Covid-19 Booster Shouldn’t Be for Moderna, J&J Vaccine Recipients, Health Official Says.NEWS31: U.S. Clears Third Pfizer Dose; Victoria’s Record: Virus Update.
2021-09-24: NEWS1: EXPLAINER-What is the role of outside advisers to the U.S. FDA and CDC in vaccine decisions?.NEWS2: Pfizer and OPKO Announce Extension of U.S. FDA Review of Biologics License Application of Somatrogon for Pediatric Growth Hormone Deficiency.NEWS3: CDC Overrules Its Own Panel: It's Now 'Open Season' For Pfizer-BioNTech Covid Boosters.NEWS4: 60 Million Americans Who Got the Pfizer Covid Shot Can Get a Booster.NEWS5: U.S. administers 388.6 mln doses of COVID-19 vaccines - CDC.NEWS6: Wolfgang Puck on restaurant industry staffing hurdle: ‘Wages are not the issue’.NEWS7: ‘I don’t think we’ve done enough to get vaccines overseas’: Doctor.NEWS8: Behind Covid-19 Booster Authorization Were Disagreements on Evidence, Broad Access.NEWS9: EXPLAINER-Who can get a COVID-19 vaccine booster in the United States?.NEWS10: Top Research Reports for Home Depot, salesforce & Pfizer.NEWS11: CDC: We are not changing the definition of 'fully vaccinated' now that COVID-19 boosters are available.NEWS12: CDC guidance exacerbates confusion over COVID-19 boosters.NEWS13: Novavax (NVAX) Applies to WHO for COVID-19 Vaccine Listing.NEWS14: Pfizer (PFE) Booster Dose Gets CDC Backing for Older Adults Only.NEWS15: CDC approves Covid booster shots for those over 65.NEWS16: ‘Wildly political’ environment around vaccines creates room for ‘new leadership’: 23andMe CEO.NEWS17: Moderna to supply 20 mln doses of COVID-19 vaccine to Peru.NEWS18: 'Go get the booster,' Biden says to eligible U.S. residents.NEWS19: UPDATE 2-Biden says COVID-19 boosters will be free.NEWS20: UPDATE 1-Mexico to use only Pfizer COVID-19 vaccine on at-risk kids.NEWS21: Pharma Stock Roundup: PFE Booster Jab Gets FDA Nod, JNJ's New Data on COVID-19 Shot.NEWS22: Pfizer/BioNTech COVID-19 Boosters For Seniors, Certain Vulnerable Adults Coming Soon - CDC Panel Recommends.NEWS23: Healthcare is still ‘stuck in a world of white coats’: 23andMe CEO.NEWS24: PRESS DIGEST- New York Times business news - Sept 24.NEWS25: Pfizer in talks over full license for COVID-19 vaccine in Singapore.NEWS26: Sinovac's COVID shot highly effective against serious illness- Malaysia study.NEWS27: 'A lot of the [COVID-19] morbidity' is from unvaccinated individuals: Doctor.
2021-09-27: NEWS1: Pfizer (PFE) Dips More Than Broader Markets: What You Should Know.NEWS2: UPDATE 1-Pfizer begins study of mRNA flu vaccine.NEWS3: Pfizer Starts Study of mRNA-Based Next Generation Flu Vaccine Program.NEWS4: List of eligible booster candidates will grow: Osmosis Chief Medical Officer.NEWS5: U.S. administers 390.7 mln doses of COVID-19 vaccines - CDC.NEWS6: Doctor on Covid: Another variant of concern is anticipated to come in the future.NEWS7: Why BioNTech, Moderna, and Novavax Stocks Are Sliding Today.NEWS8: UPDATE 5-Biden gets COVID-19 booster shot as additional doses roll out.NEWS9: 10 Cheap Pharmaceutical Stocks to Watch.NEWS10: Moderna Could Follow Pfizer With A Covid Shot Approval — But Is Moderna Stock A Buy?.NEWS11: Is Pfizer Stock A Buy As 'Open Season' Begins On Covid Booster Shots?.NEWS12: Biden to get COVID booster shot Monday, White House says.NEWS13: Harvard MBA courses move online amid COVID spikes.NEWS14: UPDATE 1-EU reviewing data on Moderna's COVID-19 booster shot.NEWS15: CDC Director warns about Delta-hit areas of U.S; Pfizer CEO predicts ‘normal life’ within a year.NEWS16: Alabama doctor: Americans 'who have not rolled up their sleeve' are still the biggest issue.NEWS17: CEO says Pfizer will submit data on COVID-19 vaccine trial in 5- to 11-year-olds within days, with U.S. daily death toll still above 2,000.NEWS18: Pfizer CEO says company to submit data on COVID-19 vaccine trial in children aged 5 to 11 within days, as U.S. daily death toll remains above 2,000.NEWS19: Pfizer Kick Starts Late-Stage Study For COVID-19 Oral Antiviral For Post-Exposure Prophylaxis.NEWS20: OPKO (OPK) BLA Review for Growth Hormone Deficiency Drug Delayed.NEWS21: Pfizer's Growth Hormone Candidate FDA Review Pushed By 3 Months.NEWS22: Pfizer CEO Says Vaccine Data in Children Due Soon, Starts Trial of Pill to Protect Against Covid-19.NEWS23: Pfizer Starts Trial of Pill to Protect Against Covid-19.NEWS24: Medicine’s Golden Age Is Dawning. 10 Stocks to Play the Latest Innovations..NEWS25: UPDATE 2-Pfizer begins study of oral drug for prevention of COVID-19.NEWS26: Pfizer starts Phase 2/3 study of COVID-19 oral antiviral candidate for  adults exposed to virus.NEWS27: The Zacks Analyst Blog Highlights: Home Depot, Salesforce, Pfizer, Sony and Zoetis.NEWS28: Pfizer Starts Global Phase 2/3 EPIC-PEP Study of Novel COVID-19 Oral Antiviral Candidate for Post-Exposure Prophylaxis in Adults.NEWS29: Thinking of Buying Pfizer Stock? Here's What You Need to Know.NEWS30: S.Korea to vaccinate 12 to 17 year-olds, give boosters to elderly.NEWS31: Pfizer Stock Rises on Study of Oral Covid-19 Prevention Drug.NEWS32: Premarket Movers Monday - Carnival, Tesla, Airbnb, Pfizer.NEWS33: INSIGHT-Global vaccines project to revamp rules after Britain got more than Botswana.

Answer: Decrease