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:2021-01-27, Stock:PFE, The news for the past five days is as follows:
2021-01-20: NEWS1: Some COVID-19 variants may reduce effectiveness of vaccines.NEWS2: Pfizer (PFE) Stock Sinks As Market Gains: What You Should Know.NEWS3: Pfizer Says Covid Jab Could Battle U.K. Variant; Gritstone Expands Its Gain.NEWS4: COVID SCIENCE-S. African virus variant may resist antibody drugs; Pfizer/BioNTech vaccine seems to work vs UK variant.NEWS5: Gilead Stock 2021: Why The Biotech Stock Isn't Depending On Covid Drugs.NEWS6: Ivory Coast says delivery of its first doses of Pfizer vaccine delayed to mid-Feb.NEWS7: Three COVID-19 vaccines under final review for emergency use - WHO.NEWS8: Biden Agenda, Intel Profit, Jobless Claims: 3 Things to Watch.NEWS9: Pfizer-BioNTech Vaccine Found Effective Against New Coronavirus Strain In Lab Study.NEWS10: Pfizer Says Covid Jab Could Battle U.K. Variant; Gritstone Expands Its Gain.NEWS11: Gritstone (GRTS) to Begin Coronavirus Vaccine Study, Stock Up.NEWS12: Italy considers legal action over Pfizer vaccine delivery delays.NEWS13: Return On Capital Employed Overview: Pfizer.NEWS14: Israel includes pregnant women on COVID-19 vaccines priority list.NEWS15: Another Paper From Pfizer and BioNTech Shows Vaccine Will Protect Against U.K. Strain.NEWS16: German COVID-19 fight hit by delay to Pfizer vaccine.NEWS17: CORRECTED-German minister annoyed by Pfizer short-notice delivery delay.NEWS18: Pfizer vaccine appears effective against coronavirus variant found in Britain -study.NEWS19: COVID-19 Vaccine Update – Some EU Member States Break Ranks.
2021-01-21: NEWS1: Coronavirus update: Biden signs more COVID-19 orders; Pfizer wants to expand sales to states.NEWS2: Inequitable vaccine distribution could lead to ‘a catastrophic moral failure’.NEWS3: Pfizer suspends Costa Rica vaccine shipments for three weeks, govt says.NEWS4: N.Y.-Presbyterian Ensuring It Has Vaccine Reserves: CEO.NEWS5: Pfizer cuts vaccine deliveries by as much as half to some EU countries.NEWS6: EU scrambles for syringes to avoid wasting Pfizer vaccines and extra cost.NEWS7: CORRECTED-Pfizer cuts vaccine deliveries by as much as half to some EU countries.NEWS8: Pfizer (PFE) COVID-19 Vaccine Seems Potent Against UK Strain.NEWS9: Hungary Approves Russia’s Covid-19 Vaccine.NEWS10: BioNTech investor, amid worry over shortage, vows vaccines to be delivered for 2nd shot.NEWS11: Bosnia to order Russian, Chinese vaccines ahead of COVAX, EU deliveries.NEWS12: Merkel Promises Broad Vaccine Availability Before September Vote.NEWS13: Biden Day 1: Executive action on COVID-19 response.NEWS14: UK health minister says data on Pfizer vaccine supports shift to 12-week dosing schedule.NEWS15: Norway ready for reduced Pfizer/BioNTech vaccine into Feb.NEWS16: With fewer resources, rural America tackles Covid-19 vaccine distribution.NEWS17: Panasonic Has Been a Tesla Play and Vaccine Bet. Now the Stock’s Rising on Cold Storage..NEWS18: Ecuador says first batch of 18 million contracted doses of COVID-19 vaccine arrive.
2021-01-22: NEWS1: Top Coronavirus Vaccine Makers Will Earn Up to $23 Billion in Revenue This Year, Says New Analysis.NEWS2: Coronavirus update: UK variant may be more deadly than previously thought; CDC says second dose can be delayed.NEWS3: Severe allergic reactions to Moderna vaccine appear rare -CDC report.NEWS4: Q4 Earnings Season Scorecard and Analyst Reports for Amazon, JPMorgan & Pfizer.NEWS5: BioNTech, Pfizer to sell 40 million doses to lower-income countries.NEWS6: Pfizer finishes enrolling kids in its COVID-19 vaccine study.NEWS7: What Investors Need to Know About Coronavirus Variants.NEWS8: Johnson & Johnson Aims for 100 Million Vaccine Doses by Spring. The Stock Market Is Counting on It..NEWS9: U.S. alone won't fill COVAX funding gap, lead official says.NEWS10: Gap between COVID-19 shots may be stretched past recommended range in some cases -U.S. CDC.NEWS11: More COVID Vaccines Should Become Available With This Major Strategy Change.NEWS12: New Covid-19 Strains May Make Vaccines Less Effective, Fauci Warns.NEWS13: Is Novavax Stock A Buy As Pressure Mounts For More Covid Vaccines?.NEWS14: Pfizer Stock 2021: A Lean, Mean, Covid-Fighting Machine?.NEWS15: EU will seek clarification from Pfizer over new vaccine delays.NEWS16: 3 Warren Buffett Stocks That Should Be Surefire Winners in 2021.NEWS17: Shareholders Of Pfizer (NYSE:PFE) Must Be Happy With Their 54% Return.NEWS18: Pfizer, GSK-Backed ViiV First To Get FDA Approval For HIV Shots: What You Need To Know.NEWS19: Pfizer and BioNTech to Supply WHO's COVID-19 Vaccine Program.
2021-01-25: NEWS1: Moderna CEO offers a bleak assessment of COVID-19: Virus to stay with the world 'forever'.NEWS2: Top 5 Healthcare Stocks of 2020: Are They Buys Now?.NEWS3: Asian Stocks Down, Questions Remain on Timing and Size of U.S. Stimulus.NEWS4: Merck Scraps 'Inferior' Covid-19 Vaccines; But Shares Recover From Dip.NEWS5: Covid Vaccines: Here's What J&J Has To Do To Undercut Pfizer, Moderna.NEWS6: It Was a Grim Morning in the Covid-19 Fight. The Market Is Looking to Johnson & Johnson for Hope..NEWS7: Early results on Pfizer COVID-19 vaccine encouraging, says Israeli HMO.NEWS8: Doctor: 'The public should feel confident that the vaccines will work'.NEWS9: J&J may share findings from Phase 3 vaccine trial this week.NEWS10: Pfizer (PFE) to Supply 40M Doses of Coronavirus Vaccine to COVAX.NEWS11: University Hospital CEO on COVID-19 vaccination rollout.NEWS12: Coronavirus update: Moderna launches booster study for South African strain, Merck pulls out of vaccine race.NEWS13: Merck Scraps Development Of 'Inferior' Covid Vaccines; Shares Dip.NEWS14: Moderna Making Vaccine Booster Shot to Protect Against South African Covid-19 Strain.NEWS15: Merck Shuts Down Covid Vaccine Program After Lackluster Data.NEWS16: Exelixis (EXEL) Wins FDA Nod for Cabometyx + Opdivo in RCC.NEWS17: COVID Vaccine Stocks: How Strong Is BioNTech's Financial Position?.NEWS18: CDC says doses of COVID-19 vaccines can be spaced out by up to 42 days.NEWS19: Projected UK Pfizer vaccine supply unchanged for Jan to March period - PM's spokesman.NEWS20: CDC: Moderna's COVID-19 vaccine can cause allergic reaction in some people.NEWS21: The Zacks Analyst Blog Highlights: Amazon, JPMorgan, Pfizer, Salesforce and Chevron.NEWS22: EU seeks answers from AstraZeneca on cut to vaccine supplies in Monday meeting.NEWS23: Pfizer-BioNTech’s Covid-19 Vaccine Approved By Australia’s Regulator.NEWS24: European Commission Approves BAVENCIO® (avelumab) for First-Line Maintenance Treatment of Locally Advanced or Metastatic Urothelial Carcinoma.NEWS25: Pfizer COVID-19 Vaccine Gets Approved In Australia.NEWS26: Japan likely to hit COVID-19 herd immunity in Oct, months after Olympics - researcher.NEWS27: GLOBAL MARKETS-Asian shares under pressure on rising coronavirus cases.
2021-01-26: NEWS1: Pfizer (PFE) Gains As Market Dips: What You Should Know.NEWS2: ‘If you’re a teacher, it’s a lot safer to be in school:’ InHouse Physicians CEO.NEWS3: Doctor on Biden’s vaccine goals: ‘I don’t think that those numbers would be realistic at all’.NEWS4: Coronavirus update: J&J to release vaccine data next week; strain from Brazil confirmed in US.NEWS5: More countries have banned travel from South Africa as its Covid-19 variant poses a vaccine challenge.NEWS6: Markets continue to flitter between stimulus hope and COVID concerns: strategist.NEWS7: It will take ‘significant mutations’ for COVID-19 vaccines to be ineffective: Doctor.NEWS8: J&J CEO: Expect Phase 3 results for its COVID-19 vaccine candidate early next week.NEWS9: Earnings Preview: Pfizer (PFE) Q4 Earnings Expected to Decline.NEWS10: Expect Treasury Yields to Start Climbing Again Soon, BCA Says.NEWS11: Johnson & Johnson (JNJ) Surges to All-Time High.NEWS12: Breakout Watch: IPO Leader, Pfizer Vaccine Partner MRVI Stock Enters Buy Zone.NEWS13: Pfizer's (PFE) Bavencio Gets EU Nod for First-Line Bladder Cancer.NEWS14: How Long Will Coronavirus Vaccine Drive Moderna (MRNA) Stock?.NEWS15: Britain will work with EU to avoid vaccine disruption, UK health minister says.NEWS16: Moderna on track to deliver 200 million doses of its COVID vaccine to U.S. govt by end-June.NEWS17: Is Pfizer A Great Dividend Stock?.NEWS18: WRAPUP 2-Keep your supply promises, EU tells vaccine makers as deliveries wobble.NEWS19: No serious COVID-19 cases among Israelis given Pfizer shot, minister says.NEWS20: Merck Just Scrapped Its Coronavirus Vaccines — Is Merck Stock A Buy?.NEWS21: Myovant Sciences and Pfizer Announce Positive One-Year Data from Phase 3 SPIRIT Extension Study of Once-Daily Relugolix Combination Therapy in Women with Endometriosis.NEWS22: Could Pfizer Be a Millionaire-Maker Stock?.NEWS23: 3 Stocks Warren Buffett Would Love.NEWS24: Pfizer Expects to Deliver Covid Vaccines Quicker Than Expected.NEWS25: Why Pfizer Will Make More Money Than Originally Expected in 2021.NEWS26: Comic: Covid-19 in 2021: Déjà Vu, or the Beginning of the End?.NEWS27: Exclusive: Scarce niche syringes complicate U.S. plan to squeeze more COVID shots from Pfizer vials.

Answer: Decrease