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:2021-05-26, Stock:PFE, The news for the past five days is as follows:
2021-05-19: NEWS1: COVID vaccines mint new billionaires as BioNTech and Moderna CEOs' wealth soars.NEWS2: Spain to lift suspension of AstraZeneca vaccine for second dose in people under 60.NEWS3: COVID-19 variants 'are always going to be the wild card': Doctor.NEWS4: CORRECTED-Fauci expects COVID-19 vaccines for kids in late-2021, sees need for booster shot.NEWS5: There’s ‘always a concern' of another COVID-19 wave: Doctor.NEWS6: FDA Official Backs COVID-19 Booster Shots In Vaccinated People Within A Year: CNBC.NEWS7: Pfizer To Start Making COVID-19 Vaccine Component In Ireland By 2021 End.NEWS8: BioNTech (BNTX) Up More Than 100% So Far This Year: Here's Why.NEWS9: 'Vaccinated people are exceedingly safe,' doctor stresses amid reports of breakthrough cases.NEWS10: UPDATE 1-Pfizer to produce COVID-19 vaccine component in Ireland.NEWS11: Sarepta (SRPT) Rises on Robust DMD Gene Therapy Study Data.NEWS12: Is Novavax Stock A Sell After Announcing Another Covid Vaccine Delay?.NEWS13: CORRECTED-UPDATE 4-IOC reassures anxious Japan that Olympics will be safe.NEWS14: UK launches extensive trial of third booster shots of Covid vaccines.
2021-05-20: NEWS1: U.S. Treasury Proposes Global Minimum Corporate Tax of At Least 15%.NEWS2: UPDATE 1-FDA recommends not using syringes from Chinese firm after safety issues with vaccine injections.NEWS3: FDA recommends against use of syringes, needles by Chinese firm after safety issues.NEWS4: UPDATE 2-BioNTech says vaccine likely to be effective against India variant.NEWS5: A close eye must be kept on COVID-19 immunity: Doctor.NEWS6: BioNTech CEO says vaccine 70-75% effective for India variant.NEWS7: UK regulator says Pfizer COVID vaccine can be stored 31 days in fridge.NEWS8: Pfizer, BioNTech To Supply 1.8B Additional COVID-19 Vaccine Doses to EU.NEWS9: House Republicans Propose Their Own $400 Billion Transportation Bill.NEWS10: The Battle Over Covid Vaccine Patents Begins — What It Could Mean For Biotech.NEWS11: UPDATE 3-Two AstraZeneca COVID shots could be 85-90% effective, UK real-world data suggest.NEWS12: Booster dose of COVID vaccines to be given to U.K. volunteers in new trial.NEWS13: Pfizer, BioNTech Gain On Signing Deal With EU For 1.8 Billion More Doses.NEWS14: World’s first COVID-19 ‘booster trial’ will give third vaccine dose to U.K. volunteers.NEWS15: 5 Biopharma Stocks That Are Cheap and Growing.NEWS16: UPDATE 2-Hungary has opted out of new EU vaccine deal with Pfizer.NEWS17: UPDATE 1-Pfizer, BioNTech to deliver 60 mln more COVID-19 vaccine doses to Turkey.NEWS18: European Commission Inks Third Supply Pact With BioNTech-Pfizer For 1.8B Vaccine Doses.NEWS19: UPDATE: Pfizer and BioNTech to supply EU with up to 1.8 billion additional COVID vaccine doses.NEWS20: Hungary has opted out of new vaccine deal with Pfizer -EU spokesman.NEWS21: Pfizer and BioNTech to Supply the European Union With up to 1.8 Billion Additional Doses of COMIRNATY®.NEWS22: CORRECTED-Pfizer COVID-19 vaccine can be stored in refrigerator for a month, U.S. says (May 19).
2021-05-21: NEWS1: Best Stocks to Buy in 2021 According to Billionaire Prem Watsa.NEWS2: The U.S. is not ‘maximizing’ access to COVID-19 vaccines: Doctor.NEWS3: Pfizer Hits Deadlock With India Over Vaccine Indemnity Issue: Reuters.NEWS4: Pfizer/BioNTech to Supply 1.8B More Doses of Comirnaty in EU.NEWS5: Merck Battles Pfizer in Lucrative Pediatric Vaccine Market.NEWS6: COVID vaccination success in U.S. and other wealthy countries contrasts with shortages elsewhere as G-20 promises to step up.NEWS7: Merck's (MRK) Pneumococcal Vaccine Succeeds in Pediatric Trials.NEWS8: Pharma Stock Roundup: GSK/SNY COVID-19 Vaccine Data, PFE's New EU Supply Deal.NEWS9: UPDATE 2- India, Pfizer seek to bridge dispute over vaccine indemnity -sources.NEWS10: UPDATE 2-'Failure for humanity': rich world aims to end vaccine inequities.NEWS11: Top Pharmaceutical Companies in India.NEWS12: UPDATE 1-Pfizer, BioNTech make huge pledge to address COVID vaccine inequality.NEWS13: INSIGHT-Inside the race to find a COVID-19 treatment pill.NEWS14: G20 health summit looks to boost vaccine access, drugmakers to offer cut-price shots.NEWS15: BioNTech says COVID-19 vaccine likely to be effective against Indian coronavirus variant.NEWS16: 2 Blue Chips I'd Love to Buy in a Bear Market.NEWS17: India and Pfizer at impasse over vaccine indemnity demand -sources.NEWS18: INSIGHT-Inside the race to find a COVID-19 treatment pill.NEWS19: Japan approves AstraZeneca COVID vaccine ahead of Tokyo Olympics.
2021-05-24: NEWS1: United Airlines joins Uber, Lyft, and Shake Shack in COVID-19 vaccine push.NEWS2: Pfizer begins testing booster shot on fully vaccinated adults.NEWS3: U.S. must be ‘mindful’ as Covid escalates in other countries: Doctor.NEWS4: Big Drug Stocks Have Rallied. Why an Analyst Says They Have More Room to Run..NEWS5: WHO head slams ‘scandalous inequity’ in COVID vaccines with 10 countries accounting for 75% of doses administered.NEWS6: Pfizer Starts Another Covid-19 Booster Trial.NEWS7: Pfizer Starts Testing Pneumococcal Vaccine Candidate Along With COVID-19 Booster Shot.NEWS8: Moderna Gains On Expanded Pact With Plasmid DNA Supplier.NEWS9: Pfizer is testing a COVID-19 booster shot in combination with new pneumococcal conjugate vaccine candidate.NEWS10: The Zacks Analyst Blog Highlights: Sanofi, GlaxoSmithKline, Pfizer, Eli Lilly and Merck.NEWS11: Pfizer Initiates Study Exploring Coadministration of Its 20-valent Pneumococcal Conjugate Vaccine Candidate Along With a Third Dose of the Pfizer-BioNTech COVID-19 Vaccine in Older Adults.NEWS12: 3 Reasons Why This Vaccine Maker May Dominate the European Market.NEWS13: 5 Stocks Billionaires Couldn't Stop Buying in Q1.
2021-05-25: NEWS1: Half of all U.S. adults are now fully vaccinated against covid-19.NEWS2: Wednesday at 1PM ET: AI, Digital Health, and Going Public: Live Forum with CEOs of Startups Owlet, TytoCare, Kinsa.NEWS3: Deepak Chopra on managing stress in post-covid world.NEWS4: It’s the ‘perfect moment’ to talk about getting kids vaccinated: Doctor.NEWS5: Moderna Sees Single-Dose COVID-19 Vaccine Launch In India In 2022.NEWS6: Moderna’s Covid-19 Vaccine Works Safely in Adolescents, Company Says.NEWS7: Moderna's Teen COVID-19 Vaccine Trial Hits High Marks.NEWS8: France blasts 'pathetic' attempts to discredit Pfizer vaccine online.NEWS9: Europe weighs risks, benefits of vaccinating kids against COVID-19.NEWS10: Will we need COVID-19 booster shots? Increasingly, the expectation is yes.NEWS11: BioMarin (BMRN) Hemophilia Gene Therapy Gets EMA's Speedy Review.NEWS12: Moderna says its COVID-19 vaccine 100% effective in teens.NEWS13: COVID-19 Vaccine Waiver Isn’t Too Tough a Pill for Pfizer to Swallow.NEWS14: Pfizer (PFE) Tests COVID-19 Booster & Pneumococcal Vaccine Combo.NEWS15: Moderna to Seek Approval for  Covid-19 Vaccine for Adolescents.NEWS16: How the Adolescent COVID Vaccine Market Could Be Huge for Pfizer... Eventually.NEWS17: When Will Moderna File for FDA Approval for Its COVID Vaccine?.NEWS18: Could This Study Be Bad News for Pfizer's COVID Vaccine Sales?.NEWS19: UPDATE 5-EU expects to get more than a billion COVID-19 shots by September.NEWS20: Moderna Rises As Vaccine Found 100% Effective In Teens.NEWS21: UPDATE 1-India's coronavirus infections ebb but states struggle for vaccines.NEWS22: Pfizer in talks with India for COVID-19 vaccine supplies.

Answer: Decrease