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:2021-04-09, Stock:PFE, The news for the past five days is as follows:
2021-04-01: NEWS1: Pfizer and BioNTech's Coronavirus Vaccine Remains Effective for at Least 6 Months.NEWS2: 'The important thing is to have as many Americans vaccinated as possible': Doctor.NEWS3: BioNTech Stock Hikes As Pfizer-Partnered Covid Vaccine Appears Durable.NEWS4: EU countries agree to share 'solidarity vaccines' with states in need.NEWS5: Quidel issued first emergency use authorization by FDA for a COVID-19 antigen test.NEWS6: How Biden’s ‘momentous’ rescue plan helps older Americans: NCOA President.NEWS7: UK Data Shows Substantial Immune Response With Pfizer COVID-19 Shot In Elderly.NEWS8: Layers of mitigation against the virus remains ‘critical’: Doctor.NEWS9: Pfizer Trials Show Vaccine Is Effective for At Least Six Months.NEWS10: UPDATE 3-Pfizer/BioNTech COVID-19 shot 91% effective in updated data, protective against South African variant.NEWS11: Anytime there’s a bad headline about these vaccines, it’s going to add to vaccine hesitancy: Dr. Amesh Adalja .NEWS12: Pfizer and BioNTech say their COVID-19 vaccine is safe and highly effective — including against South Africa variant.NEWS13: Pfizer Suggests Covid Vaccine Can Tackle South Africa Variant; BioNTech Pops.NEWS14: Did Pfizer Just Leap Ahead of Moderna in This Key Market?.NEWS15: Pfizer, Biotech vaccine shows strong results after 6 months.NEWS16: Dow, Gibraltar Industries, Pfizer, BioNTech and Micron highlighted as Zacks Bull and Bear of the Day.NEWS17: Pfizer Warns EU Bureaucracy Is Holding Back Worldwide Vaccine Efforts.NEWS18: Pfizer-BioNTech COVID-19 Shot Safe, Effective Through Six Months After Second Dose.NEWS19: UPDATE 1-Pfizer COVID-19 shot 91% effective in updated data, protective against South African variant.NEWS20: Pfizer/BioNTech vaccine effective after 6 months; Moderna starts variant trial.NEWS21: Pfizer, BioNTech say study of COVID-19 patients six months after second vaccine dose proved it is safe and effective.NEWS22: Pfizer (PFE)/BioNTech COVID-19 Vaccine 100% Effective in Teens.NEWS23: Pfizer and BioNTech Confirm High Efficacy and No Serious Safety Concerns Through Up to Six Months Following Second Dose in Updated Topline Analysis of Landmark COVID-19 Vaccine Study.NEWS24: UPDATE 2-Pfizer COVID-19 shot 91% effective in updated data, protective against South African variant.NEWS25: Pfizer's Decision to Develop mRNA Vaccines on Its Own: Brilliant or Boneheaded?.NEWS26: Pfizer Versus Moderna: Which Is Leading U.S. Vaccine Rollout?.NEWS27: Pfizer-BioNTech Vaccine Tests Well Against South African Variant.NEWS28: Premarket Movers Thursday - Micron, Microsoft, Pfizer.NEWS29: BioNTech SE (BNTX) Q4 2020 Earnings Call Transcript.NEWS30: BioNTech and Pfizer trial data signal protection against South Africa variant.
2021-04-05: NEWS1: The IBD/TIPP Poll Gives These 3 Covid Vaccine Stocks Reason To Be Bullish.NEWS2: Top Research Reports for JPMorgan, Verizon & Chevron.NEWS3: Travel boom poses threat to COVID-19 recovery: Doctor.NEWS4: 10 Best Biotech Stocks To Buy For 2021.NEWS5: Pfizer In Talks With Israel For New COVID-19 Vaccine Supply Deal: Reuters.NEWS6: Pfizer Negotiating Deal to Sell More Covid-19 Vaccines to Israel.NEWS7: Pfizer says working on new COVID-19 vaccine supply deal to Israel.NEWS8: SpringWorks (SWTX) Begins Dosing in Multiple Myeloma Study.NEWS9: BioNTech Stock Has Surged on Covid Vaccine. Its Next Big Hit Might Take a While..NEWS10: Is J&J Stock A Buy Now That The FDA Has Authorized Its Covid Vaccine?.NEWS11: Better Buy for 2021: Pfizer or Gilead?.NEWS12: J&J (JNJ) Gets Full Charge of Emergent COVID-19 Vaccine Plant.NEWS13: Vaccine Stocks Checkup: Johnson & Johnson, Pfizer Update.NEWS14: Covid-19 Vaccine Update And Outlook Amid New Variants, Hiccups For Some Vaccine Developers.
2021-04-06: NEWS1: Pfizer (PFE) Stock Sinks As Market Gains: What You Should Know.NEWS2: Pfizer arthritis drug Xeljanz under Canadian regulator's scrutiny for safety risks.NEWS3: Biden Sets New Shot Goal: Brazil Has 4,000 Deaths: Virus Update.NEWS4: Will you vaccinate your kids against COVID-19 once they’re eligible? Only half of U.S. parents say yes.NEWS5: Biotech company Kaleido develops oral therapy for COVID-19.NEWS6: UPDATE 1-Ukraine signs deal with Pfizer for 10 million coronavirus vaccine doses -president.NEWS7: There’s increasing confidence vaccine supply can meet demand: Doctor.NEWS8: Moderna Rises as Testing Shows COVID Antibodies Last at Least 6 Months.NEWS9: The next few weeks 'are going to be critical,' Fauci warns.NEWS10: UPDATE 1-South Africa signs deal for 20 million Pfizer vaccine doses.NEWS11: Yahoo Finance Presents: Director of the NIAID Dr. Anthony Fauci.NEWS12: The Zacks Analyst Blog Highlights: Pfizer, Johnson & Johnson, Delta Air Lines, Southwest Airlines and United Airlines.NEWS13: The Zacks Analyst Blog Highlights: JPMorgan, Verizon, Chevron, Pfizer and QUALCOMM.NEWS14: Pfizer's CEO Makes a Claim That Might Shock Anyone Holding Moderna or BioNTech Stock.NEWS15: Why Pfizer and BioNTech's COVID Vaccine Could Be Even Better Than Expected.NEWS16: AstraZeneca under pressure as UK considers under-30s ban.NEWS17: S.Africa signs deal for 20 mln Pfizer COVID-19 doses.NEWS18: Pfizer Trades Flat Amid Possible New COVID-19 Vaccine Deal with Israel.
2021-04-07: NEWS1: We will fight in protecting the right to vote: Michigan Lt. Governor.NEWS2: Coronavirus: 'We are seeing so many younger patients'.NEWS3: COVID-19 mitigation is the ‘most effective weapon’ to avoid fourth wave: Doctor.NEWS4: NIH Starts Study On Allergic Reactions Risk To Pfizer/BioNTech, Moderna COVID-19 Vaccines.NEWS5: White House won’t support ‘vaccine passports’: Psaki.NEWS6: Pfizer’s Xeljanz Faces Canadian Review Amid More Scrutiny of JAK Inhibitors.NEWS7: UPDATE 1-U.S. begins study on allergic reaction risk in Moderna, Pfizer vaccines.NEWS8: Pfizer's Xeljanz Under Health Canada's Scrutiny For Safety Risks.NEWS9: Pfizer says FDA review time for dermatitis drug candidate has been extended.NEWS10: UPDATE 2-U.S. FDA extends review of Pfizer's experimental skin disease drug.NEWS11: This Vaccine Maker May Be Next to Go After the Kids' Market.NEWS12: Pfizer Announces Extension of Review of New Drug Application of Abrocitinib for the Treatment of Moderate to Severe Atopic Dermatitis.NEWS13: AstraZeneca vaccine's causal link to blood clots not proven, says European Medicines Agency.
2021-04-08: NEWS1: UPDATE 6-Australia doubles Pfizer vaccine order as Astra clotting worries upend rollout.NEWS2: Australian PM meets state and territory leaders under pressure from vaccine shift.NEWS3: Top COVID-19 Vaccine Stories of March Put Biotech ETFs in Focus.NEWS4: Fauci: new Covid-19 cases are at a disturbing level, U.S. is primed for a surge.NEWS5: Study shows wearables could detect COVID-19 earlier.NEWS6: WRAPUP 2-AstraZeneca woes grow as Australia, Philippines, African Union curb COVID-19 shots.NEWS7: COVID-19 vaccinations are ‘extraordinarily safe’: Doctor.NEWS8: Pfizer (PFE) Dermatitis JAK Inhibitor NDA Review Gets Delayed.NEWS9: Why Didn't Pfizer and BioNTech Stocks Soar After Their COVID Vaccine Achieved 100% Efficacy in Kids?.NEWS10: Oxford scientists behind COVID-19 vaccine set for multimillion pound payday.NEWS11: UPDATE 1-Britons can be confident in vaccine monitoring, health secretary says.NEWS12: Australia backs Pfizer virus vaccine over AstraZeneca for under-50s.

Answer: Rise