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:2021-08-06, Stock:PFE, The news for the past five days is as follows:
2021-07-30: NEWS1: How Contagious Is the Delta Variant? CDC Study Sheds Light..NEWS2: UPDATE 2-U.S. approval of COVID-19 shots could boost vaccination numbers, Fauci says.NEWS3: Doctor on Delta variant: ’All of us are extremely concerned’.NEWS4: WHO expert: Delta variant poses stark choice between behavior change or 'more lockdowns'.NEWS5: 15 Most Valuable Biotech Companies in the World.NEWS6: Have $500? Here Are 2 High-Yielding Healthcare Stocks to Consider.NEWS7: Pharma Stock Roundup: Q2 Earnings of MRK, PFE & Others, FDA Approvals for GSK, ABBV.NEWS8: CDC Data on Delta’s Contagion Should Boost Covid Vaccines and Drugs.NEWS9: 10 Best Dividend Achievers to Buy According to Hedge Funds.NEWS10: Pharma & Healthcare ETFs at a One-Year High: Here's Why.NEWS11: Pfizer says immunity can drop to 83% within four months in people who got its COVID-19 shot, further bolstering the company case for a booster.NEWS12: Why BioNTech Stock Jumped This Week.NEWS13: This 1 Thing in Pfizer's Earnings Report May be a Coronavirus Game Changer.NEWS14: Is a Meltdown on the Way for Moderna Stock?.NEWS15: AstraZeneca may be done with vaccines. That’s sad but not surprising.
2021-08-02: NEWS1: Top Research Reports for Amazon, Pfizer & Verizon.NEWS2: Eli Lilly (LLY) Option Traders Prepped for Earnings Beat.NEWS3: Amgen (AMGN) Option Traders Unenthusiastic Into Earnings.NEWS4: Pfizer, Moderna Reportedly Boost Covid Shot Prices — And BioNTech Stock Pops.NEWS5: IBD/TIPP Poll: Will Employer-Required Shots Rattle Resisters — Or Vaccine Stocks?.NEWS6: Germany set to begin vaccinating teens 12 and over and offering COVID booster shots to older and at-risk people.NEWS7: Pfizer Expects $33.5 Billion In Full-Year Covid Vaccine Sales — Is PFE Stock A Buy?.NEWS8: Chinese EV makers edge higher, GE trades on reverse stock split, Moderna & Pfizer raise prices.NEWS9: Doctor on COVID-19: 'People who are vaccinated are still very susceptible to infection'.NEWS10: Dow Jones Pares Early Gains As Nasdaq Leads; Square Stock Soars On This News.NEWS11: Latest Covid deaths are 'largely preventable' and 'inexcusable': Doctor.NEWS12: Pfizer and Moderna are raising COVID-19 vaccine prices in Europe.NEWS13: Countries Are Preparing to Offer Booster Shots. What It Means for Vaccine Makers..NEWS14: Booster shots for coronavirus 'are going to become a reality,' doctor says.NEWS15: BioNTech Stock Pops On Bullish Quarterly Expectations Even As Delta Conquers U.S..NEWS16: Why Pfizer Stock Is Testing New Highs Today.NEWS17: Physician: The 'best tool' to prevent lingering COVID-19 symptoms is vaccination.NEWS18: White House urges vaccinations as Delta variant engulfs the nation.NEWS19: Is a Beat Likely for Moderna (MRNA) This Earnings Season?.NEWS20: Combining AstraZeneca and mRNA COVID-19 vaccines is effective -Danish study.NEWS21: Covid Has Boosted the Healthcare Sector. This Stock Is a Prime Example..NEWS22: Buy This Drugmaker Stock Because Its Turnaround Could Be Accelerated.NEWS23: UPDATE 2-J&J says still in talks with Indian govt on COVID-19 vaccine.NEWS24: Square Falls Premarket; Moderna, Caterpillar, Levi Strauss Rise.NEWS25: Fauci Says Return to Lockdowns of 2020 ‘Unlikely’.NEWS26: BioNTech, Moderna Gain On EU Deal For More Shots At Higher Prices.NEWS27: Infrastructure Bill, ISM, China Cools, Vaccine Prices - What's Moving Markets.NEWS28: Moderna And Pfizer Raise Vaccine Prices In Europe.
2021-08-03: NEWS1: 3 COVID Stocks That Could Soar Higher.NEWS2: UPDATE 1-Chilean study shows variations in success of COVID-19 vaccines.NEWS3: Biden Tells Governors of Florida, Texas to Lead: Virus Update.NEWS4: New York becomes first U.S. city to order COVID vaccines for restaurants, gyms.NEWS5: Why Pfizer Shot 4% Higher Today.NEWS6: Chef Eric Ripert on requiring proof of vaccinations: ‘It’s not an easy decision to take’.NEWS7: The Race Is On to Vaccinate School Kids This Year.NEWS8: Covid vaccine needs to be distributed exactly how the flu vaccine’s distributed: Henry Schein CEO.NEWS9: 10 Best Stocks to Buy According to Senvest Management.NEWS10: Brokers Are Upgrading Their Views On Pfizer Inc. (NYSE:PFE) With These New Forecasts.NEWS11: BioNTech (BNTX) to Report Q2 Earnings: What's in the Cards?.NEWS12: 3 Reasons Why Pfizer's and Moderna's Vaccine Revenue Growth Is Just Getting Started.NEWS13: How the Delta Variant Could Change the World of Coronavirus Vaccine Stocks.NEWS14: This Could Be Pfizer's Next COVID Blockbuster -- and It Isn't a Vaccine.NEWS15: Market on Eggshells, Masking Up, ISM, Pfizer and Moderna Just Getting Started.NEWS16: Translate Bio Stock Jumps as Sanofi to Buy U.S. Partner for $3.2 Billion.
2021-08-04: NEWS1: UPDATE 1-Pfizer to require U.S. workers receive COVID-19 vaccine or regular tests.NEWS2: Moderna (MRNA) Option Traders Ready for Earnings Boost.NEWS3: Music events like Lollapalooza are not safe right now: Doctor.NEWS4: WHO Asks To Hold Off COVID-19 Vaccine Booster Shots Citing Inequality: Report.NEWS5: Should the Lambda Variant Worry You? Not if You’re Vaccinated..NEWS6: Why BioNTech Stock Is Jumping Today.NEWS7: Delta variant is now in 135 countries, says WHO, as director-general calls for moratorium on boosters to allow poorer countries get first doses.NEWS8: WHO urges nations to prioritize the COVAX initiative.NEWS9: UPDATE 2-Britain to offer COVID shots to all 16- and 17-year-olds.NEWS10: 10 Pharma Companies Making Treatment for Opioid Overdose.NEWS11: BioNTech, Moderna Soar As WHO Wants Nations To Hold Off Boosters.NEWS12: Pfizer Announces Positive Top-Line Results from Phase 2b/3 Trial of Ritlecitinib in Alopecia Areata.NEWS13: 1 Major Takeaway From Pfizer's Blowout Second-Quarter Results.NEWS14: Coronavirus tally: Global cases of COVID-19 near 200 million and FDA seeks full approval of Pfizer vaccine by Labor Day.NEWS15: Indonesia Becomes Second in Asia to Hit 100,000 Covid Deaths.NEWS16: Thai hospital tycoon who promised Pfizer vaccine says deal now unlikely.NEWS17: Pfizer Stock Active as Markets Steady into Jobs Data; Robinhood Extends Surge.NEWS18: UPDATE 4-Man in his 20s becomes one of Australia's youngest COVID-19 deaths.NEWS19: FDA aiming to give final approval to Pfizer vaccine by early next month: NY Times.NEWS20: FDA aims for full approval of Pfizer COVID-19 vaccine by Labor Day: report.
2021-08-05: NEWS1: Novavax data shows four-fold jump in antibody levels via booster shots.NEWS2: UPDATE 4-Moderna says COVID-19 shot maintains high efficacy through 6 months, sees eventual need for boosters.NEWS3: Coronavirus vaccine: More people vaccinated is more important than boosters, doctor says.NEWS4: Moderna CEO: Countries, not manufacturers, are responsible for WHO moratorium on boosters.NEWS5: Moderna CEO on importance of FDA approval: It's 'the credibility of our vaccine'.NEWS6: Moderna beats on earnings as vaccination push continues.NEWS7: Global tally of COVID-19 cases tops 200 million as U.S., Germany and France push back against WHO call on boosters.NEWS8: Drugs giants accused of charging NHS ‘unfairly high’ prices.NEWS9: Moderna touts its COVID vaccine's endurance and earnings that beat expectations.NEWS10: UPDATE 3-Moderna says its COVID-19 shot maintains high efficacy through 6 months.NEWS11: Delta variant is a 'wake up call', emergency physician says.NEWS12: What Really Mattered With Pfizer's Q2 Results.NEWS13: Moderna says its COVID-19 shot provides 93% immunity after six months.NEWS14: UPDATE 2-Moderna says its COVID-19 shot 93% effective six months after second dose.NEWS15: Pfizer accused of overcharging NHS for epilepsy drugs.NEWS16: Pfizer's CEO Wants to Go Shopping: 3 Potential Companies on His Radar.NEWS17: Moderna says its COVID-19 shot maintains high efficacy through 6 months.NEWS18: Moderna says its COVID-19 shot remains 93% effective 4-6 months after second dose.NEWS19: Is BioNTech Contradicting Pfizer About the Need for Booster Doses?.NEWS20: Pfizer's (NYSE:PFE) Returns are Boosted by the Vaccine. The Long Term Future is Uncertain.NEWS21: UPDATE 3-Pfizer epilepsy drug prices were 'unfairly high,' UK review finds.NEWS22: Pfizer epilepsy drug prices were 'unfairly high,' UK review finds.NEWS23: ICU Medical, inc (ICUI) Q2 2021 Earnings Call Transcript.

Answer: Rise