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:2021-02-23, Stock:PFE, The news for the past five days is as follows:
2021-02-16: NEWS1: Relaxing mitigation measures will 'recapitulate what we’ve already been seeing with further sickness': Doctor.NEWS2: Storm, power outages impact vaccine distribution.NEWS3: South Africa restarts its vaccine drive as the first country to use the Johnson & Johnson shot.NEWS4: Exelixis' Cabozantinib Data Shows Clinically Significant Benefit Versus Pfizer's Sutent, In A Type Of Kidney Cancer.NEWS5: Pfizer's PANZYGA Wins FDA Approval For Rare Peripheral Nerves Disorder.NEWS6: EU adds anti-variant clauses to new COVID vaccine supply deals - sources.NEWS7: World Health Organization Authorizes AstraZeneca’s Covid-19 Vaccine.NEWS8: WHO and Australian approvals lift hopes for AstraZeneca vaccine.NEWS9: Is AstraZeneca Stock A Buy After U.K., Europe Authorize Covid Vaccine?.NEWS10: WRAPUP 1-Japan to start inoculation drive Wednesday amid shortage of special syringes.NEWS11: High Efficacy Of Pfizer’s COVID Vaccine Corroborated By Clalit – Report.NEWS12: Pfizer Could Be an Even Bigger Winner After These 2 Fantastic Findings.NEWS13: UPDATE 1-Japan to start inoculation drive Wednesday with 40,000 medical workers.NEWS14: UPDATE 3-N. Korean hackers tried to steal Pfizer vaccine know-how, lawmaker says.NEWS15: UPDATE 1-Australia approves AstraZeneca vaccine, bolstering inoculation programme.NEWS16: UPDATE 1-Syringe shortage hampers Japan's COVID-19 vaccination roll out.NEWS17: Syringe shortage hampers Japan's COVID-19 vaccination roll out.NEWS18: UPDATE 3-Malaysia to kick off COVID-19 vaccination drive next week.NEWS19: Why the three biggest vaccine makers failed on Covid-19.
2021-02-17: NEWS1: Pfizer, BioNTech COVID-19 vaccine likely to protect against South Africa strain.NEWS2: Pfizer says South African variant could significantly reduce vaccine protection.NEWS3: Myovant Sciences and Pfizer Announce Publication in the New England Journal of Medicine of Phase 3 LIBERTY Studies of Once-Daily Relugolix Combination Therapy in Women with Uterine Fibroids.NEWS4: ‘All stops are going to be pulled out’ once we have the vaccine supply: Fmr. Surgeon General.NEWS5: 5 Affordable Biopharma Stocks With Growth Potential.NEWS6: Doctor on 'three big challenges' Biden faces with COVID-19 vaccine.NEWS7: 22 additional dividend stocks that Warren Buffett might consider buying.NEWS8: Israeli study finds Pfizer vaccine 95% effective against COVID-19.NEWS9: President Joe Biden seeks to assuage concerns about pace of vaccination.NEWS10: Exclusive: Pfizer's COVID-19 vaccine supply to the EU 30% below plans - sources.NEWS11: Pfizer-BioNTech To Supply Another 200M COVID-19 Vaccine Doses To EU.NEWS12: Novavax Trips Despite Covid Vaccine License Deal; Is NVAX Stock A Buy?.NEWS13: 2 Top Stocks to Buy for a Post-Pandemic World.NEWS14: Imcyse Raises Additional EUR 21.3 Million in Series B Financing Round - Pfizer Joins as Newest Shareholder.NEWS15: The Daily Biotech Pulse: Novartis Funding For Gene Therapy Research, Priority Review For Amgen Cancer Drug, Pfizer-BioNTech Vaccine Supply Deal.NEWS16: Exclusive: Pfizer COVID-19 vaccine supply to the EU about 10 million doses short of plan -sources.NEWS17: Pfizer Initiates Pivotal Phase 2 MagnetisMM-3 Trial of BCMA-CD3 Bispecific Antibody Elranatamab (PF-06863135) in Multiple Myeloma.NEWS18: Europe Calls On Pfizer/BioNtech For 200M More COVID-19 Vaccine Doses.NEWS19: Taiwan Puts BioNTech Vaccine Deal On Hold Due To Pressure From China: Bloomberg.NEWS20: Pfizer and BioNTech to Supply the European Union with 200 Million Additional Doses of COMIRNATY®.NEWS21: UPDATE 2-Japan begins COVID-19 vaccination in 'first major step' to halt pandemic.NEWS22: Japan begins COVID-19 vaccinations amid supply worries.NEWS23: Japanese governor urges cancelling of Olympics as vaccinations start.NEWS24: Japanese governor calls for Olympics to be cancelled as vaccination rollout begins.
2021-02-18: NEWS1: Pfizer and BioNTech Launch Coronavirus Vaccine Study for Pregnant Women.NEWS2: UPDATE 1-Pfizer, BioNTech start testing COVID-19 vaccine in pregnant women.NEWS3: Prem Watsa's Top 5 Trades of the 4th Quarter.NEWS4: Pfizer, BioNTech Begin Global Clinical Study Of COVID-19 Vaccine In Pregnant Women.NEWS5: Will The South African Variant Undo Pfizer, Moderna Covid Vaccines?.NEWS6: UPDATE 1-Pfizer plans to test COVID-19 vaccine booster targeting the South African variant.NEWS7: Pfizer, BioNTech have started trial to evaluate their COVID-19 vaccine in pregnant women.NEWS8: Pfizer, BioNTech start testing COVID-19 vaccine in pregnant women.NEWS9: Bill Gates says US can avoid a 'fall wave' of COVID-19.NEWS10: Pfizer plans to test COVID-19 vaccine booster engineered for South African variant.NEWS11: Bill Gates: with vaccine acceptance U.S. will be back to normal by fall.NEWS12: UN chief joins WHO in slamming rich countries for hogging COVID vaccines.NEWS13: BioNTech Stock: Will The South African Variant Undo Pfizer's Covid Vaccine?.NEWS14: Retractable Technologies gets $54 million to supply syringes to the U.S. for COVID-19 vaccination.NEWS15: Don’t Count on an Early Surge of J&J Covid-19 Vaccines: White House.NEWS16: COVID-19 is on the run — expect the pandemic to be under control by Memorial Day.NEWS17: Walmart (WMT) Sells Off After Missing Profit Estimates.NEWS18: Vaccine Boosters for South African Strain Look More Likely to Be Needed.NEWS19: The Daily Biotech Pulse: Lily-Rigel Licensing Deal, vTv Starts Early Stage Psoriasis Study, Immunic Data Readout.NEWS20: Smith & Nephew Maintains Dividend For 2021 Despite Q4 Earnings Hit By COVID-19; Shares Drop.NEWS21: Pfizer Says South African Variant Could Significantly Reduce Vaccine Protection: Reuters.NEWS22: Is Novavax Stock a Good Bet on Coronavirus Vaccines?.NEWS23: Canada's slow-burn vaccine roll out puts pressure on Trudeau.NEWS24: UPDATE 4-Pfizer study another worry for South Africa's vaccine rollout.NEWS25: UPDATE 2-Researchers urge delaying Pfizer vaccine's second dose as first highly effective.NEWS26: CORRECTED-Pfizer says South African variant could significantly reduce protective antibodies.NEWS27: RPT-Researchers urge delay in administering Pfizer vaccine's second dose, cite strong data.NEWS28: Researchers urge delay in administering Pfizer vaccine's second dose, cite strong data.
2021-02-19: NEWS1: UPDATE 3-Pfizer promises to double supply as Biden pushes for quicker vaccine rollout.NEWS2: UPDATE 1-U.S. House Democrats advance $1.9 trillion COVID-19 aid bill.NEWS3: Michael Burry's Top 5 Holdings: Pfizer, CitiGroup, Kraft Heinz, More.NEWS4: Biden Blames Trump; U.S. Weather Strands Vaccine: Virus Update.NEWS5: U.S. House Democrats advance $1.9 trillion COVID-19 aid bill.NEWS6: Coronavirus variants are like 'tidal waves' once they fully arrive.NEWS7: Fauci says U.S. is sticking to two doses of the BioNTech/Pfizer vaccine.NEWS8: 3 Perfect Pullback Stocks to Buy.NEWS9: Doctor Gawande on vaccine rollout: ‘6-8 weeks to work through’ priority groups.NEWS10: Novavax Surges Against On Vaccine Supply Deal; Is NVAX Stock A Buy?.NEWS11: Novavax Surges Against On Vaccine Supply Deal; Is NVAX Stock A Buy?.NEWS12: How the U.S. is ramping up the pace of vaccinations.NEWS13: UPDATE 1-First month of shots find no safety issues with Pfizer/BioNTech, Moderna vaccines -U.S. data.NEWS14: AMC Entertainment Stock Will Likely Be a Flop for Investors.NEWS15: Global case tally for COVID climbs above 110.4 million as G-7 gathers to discuss vaccine equity.NEWS16: Pfizer, Seeking Big Sales Of Covid-19 Vaccine, Adds to Its Lead.NEWS17: A market correction is ‘very unlikely’ in the upcoming months: strategist.NEWS18: Turkey to procure 105 mln doses of COVID-19 vaccines by end-April -Sabah.NEWS19: UPDATE 2-South Africa advisers back Pfizer COVID-19 vaccine after study.NEWS20: Mayo Clinic: COVID-19 vaccines are 88.7% effective in the 'real world'.NEWS21: Merck Says Covid Hammered 2020 Sales By $2.5 Billion — Is Merck Stock A Buy?.NEWS22: UPDATE 1-Israeli studies find Pfizer COVID-19 vaccine reduces transmission.NEWS23: UPDATE 6-Pfizer seeks to store vaccine at higher temperatures, easing logistics.NEWS24: BioNTech, Pfizer say their COVID-19 vaccine can be stored at higher temperatures than previously thought.NEWS25: 3 High-Yield Dividend Stocks I'd Buy Right Now.NEWS26: Wall Street Opens Higher as Yellen Comments Support Risk Appetite; Dow up 33 Pts.NEWS27: UPDATE 2-African Union says Russia offers 300 mln doses of Sputnik V vaccine.NEWS28: Pfizer Seeks FDA Approval For Higher Coronavirus Vaccine Storage Temperatures.NEWS29: Delay Pfizer COVID-19 Vaccine's 2nd Inoculation To Boost Supply? Here's What Research Is Saying.NEWS30: Israeli study finds Pfizer vaccine 85% effective after first shot.NEWS31: BioNTech/Pfizer Covid vaccine no longer needs ultra-cold storage.NEWS32: BioNTech/Pfizer jab 85% effective after first dose, finds study.
2021-02-22: NEWS1: UPDATE 2-Pfizer to ship 13 mln COVID-19 vaccine doses per week to U.S. by mid-March, says executive.NEWS2: U.S. COVID deaths top 500,000 as experts look to FDA meeting on J&J’s one-dose vaccine.NEWS3: Pfizer to ship 13 mln COVID vaccine doses per week to U.S. by mid-March, says executive.NEWS4: Viatris Stock Sacrifices A Breakout As 2021 Guidance Falls Short.NEWS5: Doctor: COVID-19 is approaching the second leading cause of death in the U.S..NEWS6: Pfizer: An Undervalued Dividend Growth Stock.NEWS7: U.S. edges closer to half a million COVID deaths as experts look to FDA meeting on J&J’s one-dose vaccine.NEWS8: 'Real-world' UK data shows 70% decline in COVID infections after first Pfizer shot.NEWS9: Novavax Takes a Step  Toward Approval for Covid-19 Vaccine.NEWS10: Pfizer Invites Public to Listen to Webcast of Pfizer Discussion at Healthcare Conference.NEWS11: What Does Pfizer's Debt Look Like?.NEWS12: Using trade ties to secure doses, Chile moves fast on COVID-19 vaccination drive.NEWS13: Viatris stock tumbles to pace S&P 500 losers after downbeat revenue, free cash flow outlooks.NEWS14: FDA committee to review J&J's COVID-19 vaccine candidate on Thursday.NEWS15: Pfizer/BioNtech's COVID-19 Shot Staved Off Illness, Death For Over 95% Of Israeli patients.NEWS16: Sanofi, GSK Restart Trials on Covid-19 Vaccine After Delay.NEWS17: Scottish study finds up to 94% drop in COVID-19 hospitalization from vaccine use: reports.NEWS18: Pfizer Expands Production For COVID-19 Doses After Meeting With President: Bloomberg.NEWS19: GlaxoSmithKline and Sanofi Re-Start COVID Vaccine Trials.NEWS20: UPDATE 1-Japan vaccine supplies to be limited, delaying shots for elderly - minister.NEWS21: Japan vaccine supplies to be limited, delaying shots for elderly - minister.NEWS22: Covid vaccines slash risk of infection, illness and death, UK studies find.NEWS23: Single vaccine dose slashes risk of serious illness, even among elderly.NEWS24: Vaccinations slash risk of serious illness in Scotland, study finds.NEWS25: Vaccine campaign slashes risk of serious illness in Scotland, study finds.NEWS26: The medieval German town at the heart of the fight against Covid.

Answer: Decrease