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:2021-04-27, Stock:PFE, The news for the past five days is as follows:
2021-04-20: NEWS1: UPDATE 2-Brazil in talks to buy 100 mln more Pfizer/BioNTech COVID-19 vaccine doses.NEWS2: EU regulatory agency links J&J COVID-19 vaccine to rare blood clots.NEWS3: Pandemic eviction bans found to protect entire communities from COVID-19: Study.NEWS4: Israel prepares second COVID vaccine round, expects to include children.NEWS5: Emergent (EBS) Bayview Unit Operation on Hold for FDA Probe.NEWS6: Pfizer (PFE)/ BioNTech to Supply Extra Comirnaty Doses to EU.NEWS7: 10 Words From Pfizer's CEO That Could Mean $10 Billion in Higher Vaccine Sales.NEWS8: UPDATE 1-EU to funnel COVID vaccines to Balkans after China, Russia shipments.NEWS9: Updating Pfizer's Technical Condition.NEWS10: China's U.S. embassy has begun accepting non-Chinese vaccine records.NEWS11: Israel logs Indian COVID-19 variant, sees some vaccine efficacy against it.NEWS12: UPDATE 2-Thailand seeks 5-10 mln doses of Pfizer vaccines.NEWS13: Austria to funnel 651,000 COVID vaccine doses to Western Balkans from EU.
2021-04-21: NEWS1: INSIGHT-How South Korea turbocharged specialty syringe production for COVID-19 vaccines.NEWS2: Bank of America, Boeing, Pfizer, Qualcomm among companies that gave $1 million to Biden’s inauguration.NEWS3: Pfizer identifies fake COVID-19 shots abroad.NEWS4: I’m confident in the J&J vaccine and its effectiveness: NewYork Presbyterian CEO.NEWS5: UPDATE 1-South African researchers hope to resume J&J vaccination study next week.NEWS6: Pfizer, unions, others donated $61.8 million for Biden's inaugural.NEWS7: Pfizer, unions, others donated $61.8 mln for Biden's inaugural.NEWS8: EU says J&J vaccine benefits outweigh risks, Pfizer finds fake COVID-19 shots .NEWS9: BioN­Tech CFO Sees Scope For Additional Pro­duc­tion Sites To Meet De­mand For COVID-19 Shots: Reuters.NEWS10: UPDATE 1-Haircuts for some, as Poland eases virus curbs in certain regions.NEWS11: India records more than 200,000 COVID cases for seventh straight day as hospitals run low on oxygen.NEWS12: EU snubs extra 300 mln J&J, Astra shots in bet on Pfizer-source.NEWS13: Leaked EU-Pfizer contract shows price for COVID vaccines set at 15.5 euros per dose.NEWS14: Pfizer Confirms Some Counterfeit COVID-19 Vaccines.NEWS15: Is Novavax Stock A Buy On Its Leading Covid Vaccine Effectiveness?.NEWS16: UPDATE 3-Japan eyes state of emergency for Tokyo, Osaka regions amid virus surge.NEWS17: Japan mulls state of emergency for Tokyo, Osaka as COVID-19 cases surge -media.NEWS18: Panama to buy 2 million more doses of Pfizer's COVID-19 vaccine.
2021-04-22: NEWS1: US Indexes Close Lower Thursday.NEWS2: 'We are still dealing with the unknown' Doctor on Covid-19.NEWS3: Vaccine trials on pregnant women show reassuring results: Doctor.NEWS4: CORRECTED-Pfizer COVID-19 shot effective for people with chronic diseases- Israel study.NEWS5: Coronavirus: The risk going forward is 'general confidence in vaccines'.NEWS6: Pfizer Declares Second-Quarter 2021 Dividend.NEWS7: UPDATE 1-Thailand says Russia agrees to supply Sputnik V COVID-19 vaccine.NEWS8: RPT-INSIGHT-How South Korea turbocharged specialty syringe production for COVID-19 vaccines.NEWS9: India to expand vaccinations but supplies tight, imports delayed.NEWS10: Could This Little-Known Company's Vaccine Candidate Leapfrog Moderna and Pfizer?.NEWS11: Can Pfizer's COVID Vaccine Beat the South African Variant?.NEWS12: Pfizer and BioNTech Vaccine Sales Jump $1.4 Billion Thanks to AstraZeneca's Blunders.NEWS13: Evonik starts lipid deliveries for Pfizer/BioNTech COVID-19 vaccine ahead of time.
2021-04-23: NEWS1: U.S. Ends Pause on Johnson & Johnson’s Covid Vaccine. What to Know..NEWS2: Johnson & Johnson Vaccine Can Resume in U.S., Panel Advises.NEWS3: 'Hopeful that JNJ coronavirus vaccine pause is lifted by FDA': Doctor.NEWS4: Moderna Is More Than Its Covid Vaccine. Why It’s Time to Buy the Stock..NEWS5: COVID SCIENCE-Third-trimester vaccination appears safe; Pfizer/BioNtech vaccine effective in those with chronic illnesses.NEWS6: Moderna’s Vaccine Has Been a Success. Buy the Stock Because There’s More Coming in Its Pipeline..NEWS7: Doctor: COVID-19 variants have 'represented incremental setbacks'.NEWS8: UPDATE 1-EU approves ramp-up of Pfizer vaccine manufacturing site in Belgium.NEWS9: Pharma Stock Roundup: JNJ's Q1 Earnings & Sales Beat, RHHBY Sales, & Other Updates.NEWS10: 1 Cheap Pharmaceutical Stock to Buy in 2021.NEWS11: UK Vaccination Studies Show 65% Drop In COVID-19 Infections After Single Dose Of Pfizer Or AstraZeneca Jab: Reports.NEWS12: EU to conclude deal for 1.8 bln vaccines with Pfizer/Biontech in days.NEWS13: UPDATE 4-EU to shortly sign world's largest vaccine deal with Pfizer.NEWS14: Is It Too Late to Buy Ocugen Stock?.NEWS15: The Biggest mRNA Winner: Pfizer, BioNTech, Moderna, or an Under-the-Radar Biotech?.
2021-04-26: NEWS1: Biden will reportedly announce new CDC mask guidance Tuesday.NEWS2: Pfizer (PFE) Gains But Lags Market: What You Should Know.NEWS3: The Johnson & Johnson vaccine ‘has become critically important’: Doctor.NEWS4: Doctor on updated mask guidelines: 'I think the time is now'.NEWS5: Biden set to announce new CDC mask guidance Tuesday: RPT.NEWS6: Adobe inks cloud deals with Pfizer, Walgreens, other healthcare companies.NEWS7: Merck (MRK) to Report Q1 Earnings: What's in the Cards?.NEWS8: France's Sanofi to help Moderna manufacture COVID-19 shots.NEWS9: Travel stocks rally as EU set to welcome vaccinated American tourists this summer.NEWS10: UPDATE 1-Moderna vaccine to be reviewed for WHO emergency listing on April 30 - WHO spokesman.NEWS11: When It Comes to a Travel Restart All Vaccines Are Not Equal.

Answer: Decrease