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:2021-05-28, Stock:PFE, The news for the past five days is as follows:
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.
2021-05-26: NEWS1: Myovant Sciences and Pfizer Receive FDA Approval for MYFEMBREE®, the First Once-Daily Treatment for Heavy Menstrual Bleeding Associated With Uterine Fibroids.NEWS2: COVID SCIENCE-Post vaccination infection rare but possibly contagious; study refutes another anti-vax pregnancy claim.NEWS3: Yesterday was first day dining activity exceeded pre-pandemic levels in the U.S.: OpenTable CEO.NEWS4: U.S. has ‘a false sense of security right now’ on COVID-19: Doctor.NEWS5: Biden to intensify investigation into COVID-19 origin.NEWS6: Philippines to authorize Pfizer COVID-19 vaccine for emergency use in 12-15 year olds.NEWS7: Doctor on Covid variants: ‘We’ve been fortunate that the vaccines have worked’.NEWS8: Taiwan criticizes China over Pfizer vaccine deal, and Wuhan lab theory irks Beijing.NEWS9: Today at 1 ET: Hear Live from 3 CEOs Driving a Revolution in Healthcare – Owlet, TytoCare, Kinsa Talk Growth, Going Public.NEWS10: Moderna's (MRNA) COVID-19 Vaccine 100% Effective in Teens.NEWS11: 3 Dividend Stocks That Pay You More Than Pepsi Does.NEWS12: Why FDA Approval for Pfizer's COVID Vaccine Would Be a Slam Dunk For the Long Run.NEWS13: How Big Is the COVID Vaccine Market for Younger Kids?.NEWS14: Are Pfizer and Moderna Trying to Boost Sales With an Early COVID Booster Shot?.NEWS15: How drugmakers went from vaccine heroes to patent villains within weeks.
2021-05-27: NEWS1: Florida Cruise Tests Rules; U.K. Opening in Doubt: Virus Update.NEWS2: Immunity to the coronavirus may persist for years, what it could mean for vaccination efforts.NEWS3: NJ lifting COVID-19 mandates is a ‘good step in the right direction’: Doctor.NEWS4: India To Skip Local Trials for 'Well Established' COVID-19 Vaccines; Pfizer Shots May Arrive By July: Reuters.NEWS5: The state of value investing vs. value rotation.NEWS6: Top 10 Vaccine Companies in the World.NEWS7: Lumber Liquidators, Planet Fitness, Moderna, Pfizer and BioNTech highlighted as Zacks Bull and Bear of the Day.NEWS8: Why Is No One Talking About Viatris Stock?.NEWS9: Myovant - Pfizer's Uterine Fibroids Treatment Wins FDA Approval.NEWS10: Here's Why Pfizer (PFE) Has Been Rallying This Year So Far.NEWS11: AbbVie Stock Is Tackling Its New Buy Point — Is It A Buy Right Now?.NEWS12: When Will Pfizer's and Moderna's COVID Vaccines Be Available for Younger Kids?.NEWS13: When Will We Know If COVID Booster Shots Will Be Required?.NEWS14: UPDATE 4-India scraps local trials for COVID shots, says Pfizer vaccine could arrive by July.

Answer: Rise