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:2021-01-08, Stock:PFE, The news for the past five days is as follows:
2020-12-31: NEWS1: Why Pfizer is the Cheapest Coronavirus Vaccine Play.NEWS2: Moderna Stock Is More Than The Covid-19 Vaccine.NEWS3: Vaccine rollout ’is the largest, logistical challenge’ that the U.S. has faced in modern history: doctor.NEWS4: British family doctors criticise change of plan on vaccine boosters.NEWS5: A Few Reasons for Investor Optimism in the New Year.NEWS6: Pfizer: No Data to Show Single Vaccine Dose Protects Beyond 21 Days.NEWS7: Pfizer: Single Dose of Vaccine Doesn't Protect Beyond 21 Days.NEWS8: AstraZeneca (AZN) COVID-19 Vaccine Gets Authorization in UK.NEWS9: How to Stay Ahead of a Mutating Virus.NEWS10: Novavax Is Inching Closer, But Its Vaccine Better Be Special.
2021-01-04: NEWS1: AstraZeneca Pops On U.K. Plans As Covid Vaccine Nabs India Approval.NEWS2: Column: Pfizer, Moderna expect billions in profits from COVID vaccines. That's a scandal.NEWS3: Doctor on COVID-19 spike: 'We're preparing for a surge of more patients over the next four weeks'.NEWS4: Coronavirus update: Moderna raises vaccine production target; new virus strains cause concern.NEWS5: Why Ocugen Stock Is Crushing It Today.NEWS6: Why BioNTech Stock Is Jumping Today.NEWS7: Outlook for biotech companies in 2021.NEWS8: 3 Takeaways for Investors in mRNA Vaccine Stocks.NEWS9: Markets Pick Up in 2021 Right Where They Left Off.NEWS10: My Favorite Biotech Stock for 2021.NEWS11: 1 Green Flag and 1 Red Flag For Pfizer's and Moderna's Vaccine Rollouts.NEWS12: Vaccine Rollout: France Is Failing at What It’s Meant to Do Best.NEWS13: US FDA Accepts Regulatory Submission from Pfizer and OPKO for Review of Somatrogon to Treat Pediatric Patients with Growth Hormone Deficiency.NEWS14: German health ministry examines delaying second COVID-19 vaccine shot - document.NEWS15: Roll out of second vaccine a 'triumph of British science'- UK's Hancock.NEWS16: European Stock Futures Higher; Vaccine Rollout Eyed.
2021-01-05: NEWS1: Ambulances put on alert as Los Angeles hospitals swamped by COVID-19 patients.NEWS2: Pfizer (PFE) Outpaces Stock Market Gains: What You Should Know.NEWS3: Pfizer Launches First Major Rebranding in Over 70 Years.NEWS4: Peruvian minister raises 'controversy' over Pfizer vaccine liability clause.NEWS5: Coronavirus update: WHO and FDA differ on changes to COVID-19 vaccine dosing.NEWS6: New COVID-19 strains 'are making a difference': Doctor.NEWS7: 'We are in a race against time, and we have to get more people vaccinated': Fmr. WH COVID-19 Task Force Member.NEWS8: UK scientists question COVID-19 vaccine dosing delay.NEWS9: FDA Opposes Diluting Coronavirus Vaccine Doses From Moderna and Pfizer to Boost Supply.NEWS10: EU In Talks To Buy Up To 300M More Coronavirus Vaccine Doses From Pfizer-BioNTech.NEWS11: ‘Shortcuts right now’ with COVID-19 could lead to ‘far worse problems’ in the future: Doctor.NEWS12: EU seeks up to 100 mln more doses of Pfizer vaccine in new deal - sources.NEWS13: Pfizer Drops the Big Blue Pill to Highlight Shift in Strategy.NEWS14: Dutch caught off guard by Pfizer approval, unable to start vaccinations until Weds says PM.NEWS15: Here's What Investors Need to Know About COVID Vaccines and Allergic Reactions.NEWS16: EXPLAINER-How safe is it to switch and space COVID-19 vaccine doses?.NEWS17: Pfizer Invites Public to Listen to Two Webcasts of Pfizer Discussions at Healthcare Conference.NEWS18: EU Seeks Up to 300 Million More Pfizer-BioNTech Doses.NEWS19: Arcturus (ARCT) to Begin Phase II COVID-19 Vaccine Study.NEWS20: Why Is Europe Paying a Lot Less Than the U.S. for COVID Vaccines?.NEWS21: 2 Undervalued Stocks for 2021.NEWS22: Pfizer's (PFE) BLA for Somatrogon Gets FDA's Acceptance.NEWS23: Why Is Everyone Talking About Arcturus Therapeutics Stock?.NEWS24: Meet the 2021 Dogs of the Dow.NEWS25: Messing Around With Vaccine Doses Is a Gamble.NEWS26: A COVID-19 shot for $150? Online scams surge as slow vaccine rollout frustrates.NEWS27: Belgium to get half the Pfizer vaccine doses it ordered for January.NEWS28: FDA Warns Against Tinkering With Pfizer, Moderna Vaccine Regimens After White House Advisor's Comments.NEWS29: "Premature" to change authorized COVID-19 vaccines dosing, schedules, FDA says.
2021-01-06: NEWS1: Pelosi: Electoral Vote Count to Continue Tonight.NEWS2: Who's On the Hook If Vaccines Go Wrong?.NEWS3: Doctor on COVID-19 vaccine rollout: 'There's been a lack of coordination at the federal level'.NEWS4: Trump Tells Protesters to ‘Go Home in Peace’.NEWS5: Moderna Stock Gains After European Agency Recommends Covid Vaccine.NEWS6: This Small Gene Therapy Stock Is Taking On Giants Regeneron, Roche.NEWS7: Did You Miss Out on the Chance for Big Gains from Arcturus Stock?.NEWS8: Canadian care home residents challenge delay of second COVID-19 vaccine shot.NEWS9: Long-Term Treasury Yields Are Climbing as Investors Bet on Democratic Senate Wins.NEWS10: U.S. officials report more severe allergic reactions to COVID-19 vaccines.NEWS11: 5 reasons musicians like Bob Dylan, Neil Young and Stevie Nicks are selling their song catalogs right now.NEWS12: UK variant of COVID-19 could become the ‘dominant virus in the U.S.’ in the next few months: Doctor.NEWS13: EXPLAINER-How safe is it to switch and space COVID-19 vaccine doses?.NEWS14: FDA Opposes Dilution of COVID-19 Vaccine Doses: Here's Why.NEWS15: Slow vaccine rollout stokes tensions among EU states.NEWS16: Novavax Has Covid-19 Vaccine News Coming Out Soon. That Could Be Good for the Stock..NEWS17: Are States Prioritizing COVID Vaccinations Differently From CDC Guidelines?.NEWS18: Dewpoint Announces Collaboration with Pfizer to Develop Potential Therapies for a Rare Form of Muscular Dystrophy.NEWS19: WRAPUP 3-Moderna COVID-19 vaccine gets the green light in Europe.NEWS20: Is Pfizer Stock a Buy?.NEWS21: Nurse first in Netherlands to get COVID-19 vaccination.NEWS22: What Britain Can Learn From Israel About Vaccinations.NEWS23: Pizza-sized boxes and paying a premium: Israel's COVID-19 vaccine rollout.NEWS24: Europe Is Botching the Vaccine Rollout.NEWS25: Colombia regulator approves Pfizer-BioNTech vaccine for emergency use.
2021-01-07: NEWS1: Sarepta Crashes On Mixed Results For Gene Therapy In Muscular Dystrophy.NEWS2: This Covid Vaccine Stock Just Rocketed On A Deal With Pharma Giant Bayer.NEWS3: Doctor: We need to be vaccinating 'several times' the amount we're currently doing.NEWS4: English health chief says people will get COVID booster shots after guidance change.NEWS5: Italy's medicines agency approves Moderna's coronavirus vaccine.NEWS6: Moderna Has Big Plans For 2021.NEWS7: Business Needs to Hit Election Deniers in the Wallet.NEWS8: The Zacks Analyst Blog Highlights: Pfizer, BioNTech, Moderna and AstraZeneca.NEWS9: UK health minister says spacing COVID-19 vaccine doses will save more lives.NEWS10: Cruise Ship Stocks Struggling to Stay Afloat.NEWS11: COVID-19 vaccine deliveries under COVAX could start this month - WHO.NEWS12: Moderna (MRNA) COVID-19 Vaccine Gets Authorization in Europe.NEWS13: 3 Biotech Technological Developments to Watch Out For in 2021.NEWS14: The Daily Biotech Pulse: CureVac COVID-19 Vaccine Deal, Argenx Out-Licenses Neuromuscular Disorder Drug, Xencor's Oncology Collaboration.NEWS15: Nearly 20,000 second doses of Pfizer vaccine given in England before rule change.NEWS16: Pfizer Doses First Participant in Phase 3 Study for Duchenne Muscular Dystrophy Investigational Gene Therapy.NEWS17: Is AstraZeneca Stock a Buy?.NEWS18: WHO Europe urges safe flexibility on timing of COVID-19 vaccine doses.NEWS19: ImaginAb Announces License and Supply Agreement with Pfizer for CD8 ImmunoPET Technology.NEWS20: Debate Over Electoral Votes Resumes; Twitter Suspends Trump Account.NEWS21: Mexican with allergic reaction after Pfizer's COVID-19 vaccine still hospitalized.NEWS22: Electoral Count to Resume Tonight; Twitter Suspends Trump Account.NEWS23: AstraZeneca vaccine rollout in England extended to doctors' practices.

Answer: Rise