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:2021-04-22, Stock:PFE, The news for the past five days is as follows:
2021-04-15: NEWS1: Mass vaccination was never expected to go perfectly — or provide 100% protection against COVID-19.NEWS2: Pfizer CEO Says a Covid Booster Shot Will Likely Be Needed.NEWS3: How J&J's Coronavirus Vaccine Fiasco Could Benefit Novavax And Others.NEWS4: Covid-19 Disease Triggers More Ultra-Rare Blood Clots Than Vaccines, Study Finds.NEWS5: Coronavirus update: J&J vaccine pause remains, Oxford studies blood clots and COVID-19 vaccines.NEWS6: More domestic medical supply manufacturing is ‘critical’ for the U.S. : Premier President.NEWS7: Pfizer Invites Shareholders to Attend Virtual-Only 2021 Annual Meeting of Shareholders on April 22.NEWS8: FDA, CDC precaution with vaccine side effects is ‘encouraging’: Doctor.NEWS9: Pfizer CEO Bourla: Vaccine Takers May Require Third Booster Dose.NEWS10: Study Claims Pfizer, Moderna Vaccines May Also Trigger Ultra-Rare Blood Clots.NEWS11: Vaccination in the U.S. was never expected to go perfectly — or provide 100% protection against COVID-19.NEWS12: J&J Vaccine Pause Could Boost Pfizer, Moderna Stock.NEWS13: Bristol Myers' (BMY) Opdivo Combo Gets EU Nod for First-Line RCC.NEWS14: Pfizer, Moderna Covid-19 Vaccines May Also Trigger Ultra-Rare Blood Clots, Study Claims.NEWS15: This Quarter’s Earnings Were Supposed to Disappoint. They’re Beating Expectations—So Far..NEWS16: Is It Time To Buy AbbVie Stock — Or Will Pfizer's Bad News Continue To Hurt?.NEWS17: Will J&J (JNJ) Kickstart Pharma Q1 Earnings With a Beat?.NEWS18: Blood clots as prevalent with Pfizer and Moderna vaccine as with AstraZeneca's: study.NEWS19: Could This Cheap COVID Vaccine Spell Doom for Pfizer and Moderna?.NEWS20: India vows to decide on foreign vaccines within 3 days to fast-track imports.NEWS21: How China Passed Up a Vaccine Opportunity and Fell Behind.NEWS22: Johnson & Johnson and AstraZeneca sagas illustrate strength of COVID-19 strategy: ‘It was a wise decision to spread the risk’.NEWS23: What Johnson & Johnson and AstraZeneca’s problems reveal about the COVID-19 mass-vaccination campaign.NEWS24: Pfizer chief says people will probably require yearly Covid booster shot.NEWS25: Pfizer CEO says people will probably need yearly Covid booster shot.
2021-04-16: NEWS1: The Dow Rose 165 Points Because Everything Came Up Roses.NEWS2: How much money will Pfizer and Moderna make from their booster shots?.NEWS3: There Is More To Pfizer Than The Covid Vaccine.NEWS4: 'You can think of it like an annual flu shot': Doctor on possible COVID-19 booster shots.NEWS5: The push to vaccinate farm workers against COVID-19.NEWS6: Vaccinating kids will be very important in getting to herd immunity: Expert.NEWS7: Top Research Reports for UnitedHealth, Pfizer & Accenture.NEWS8: UPDATE 1-Pregnant women in UK told to have Pfizer or Moderna vaccines.NEWS9: Doctor: COVID-19 vaccines 'do lead to a really strong immune response'.NEWS10: Why Pfizer Shares Keep Moving Higher?.NEWS11: Stock Market Today With Jim Cramer: Buy These Stocks Over Pfizer.NEWS12: J&J’s Vaccine Pause Could Have Ripple Effects for the World.NEWS13: The expectation of perfection: Risk of blood clot from Johnson & Johnson COVID-19 vaccine is 0.00009%.NEWS14: Moderna, Pfizer Rebuffed J&J Proposal for Joint Vaccine Safety Exam, WSJ Reports.NEWS15: UPDATE 4-Game changer: Chile hails Sinovac's 67% effectiveness in study.NEWS16: The J&J Vaccine Pause Should Worry Us All. What to Know..NEWS17: Pfizer CEO says a third vaccine dose is likely, Moderna updates booster shot timeline.NEWS18: Splunk Slips, Sunrun Rises, and Stocks Are Up.NEWS19: Moderna to Reduce Vaccine Deliveries in U.K., Canada.NEWS20: UPDATE 1-Johnson & Johnson asked rival COVID-19 vaccine makers to probe clotting risks - WSJ.NEWS21: Pharma Stock Roundup: JNJ's COVID-19 Vaccine Woes, MRK Ends COVID-19 Drug Development.NEWS22: Pfizer, Moderna Reportedly Decline J&J Request to Study Clot Risk.NEWS23: U.S. parents begin to ask: Should my child get a COVID-19 shot?.NEWS24: Pipeline pressure and Elliott’s stake have GSK in a spin.
2021-04-19: NEWS1: Pfizer (PFE) Gains As Market Dips: What You Should Know.NEWS2: Doctor on J&J vaccine: ‘You have a much higher risk of getting a blood clot if you smoke’.NEWS3: India to waive import duty on COVID-19 vaccines, says govt source.NEWS4: Doctor on J&J vaccine: It comes down to 'the benefit-risk ratio'.NEWS5: UPDATE 2-Israel to buy millions of Pfizer COVID-19 vaccine doses.NEWS6: South Africa's vaccine compensation fund could cost $17.5 mln in first year.NEWS7: Bulgaria halts AstraZeneca vaccine for women under 60 at risk of thrombosis.NEWS8: U.S. hits vaccine milestone despite rise in COVID cases.NEWS9: What Does J&J's Pause Mean for Investors?.NEWS10: UPDATE 3-Spain to trial mixing COVID vaccines after restricting AstraZeneca shot.NEWS11: CureVac starts review process in Switzerland for COVID-19 vaccine hopeful.NEWS12: The Zacks Analyst Blog Highlights: UnitedHealth, Pfizer, Accenture, Wells Fargo and Uber.NEWS13: UPDATE 1-Spain mulls delaying second dose of Moderna and Pfizer shots, El Mundo reports.NEWS14: 15 Best Stocks in the Past Week: Novavax, Moderna Surge Higher.NEWS15: Pound climbs higher after US Federal Reserve disappoints dollar.NEWS16: The public’s expectation of perfection: Risk of blood clot from Johnson & Johnson COVID-19 vaccine is 0.00009%.
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.

Answer: Decrease