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:2021-12-21, Stock:PFE, The news for the past five days is as follows:
2021-12-14: NEWS1: U.S. study suggests COVID-19 vaccines may be ineffective against Omicron without booster.NEWS2: Pfizer Says Its Covid-19 Pill Likely Works Against Omicron.NEWS3: UPS delivers 1 billionth COVID-19 vaccine dose.NEWS4: Is Pfizer Stock A Buy As Omicron Partially Eludes Its Covid Vaccine?.NEWS5: Day Hagan Logix Smart Value Fund Buys Werner Enterprises Inc, Landstar System Inc, FedEx Corp, ....NEWS6: U.S. FDA Approves Pfizer’s XELJANZ® (tofacitinib) for the Treatment of Active Ankylosing Spondylitis.NEWS7: 2- and 10-year Treasury yields see biggest gains in about a week as Fed meets and data highlight hot inflation.NEWS8: Mayo Clinic Director on the rise of Omicron.NEWS9: South African Study Shows Omicron Variant Could Escape Pfizer/BioNTech COVID-19 Vaccine Protection.NEWS10: QUOTEBOX-Reactions to Pfizer's COVID-19 pill showing near 90% efficacy.NEWS11: Who Has What? Omicron Raises Stakes for Quick Covid Sequencing.NEWS12: PFE vs. LLY: Which Stock Should Value Investors Buy Now?.NEWS13: Pfizer early study shows vaccine is 70% effective against Omicron variant as cases rise globally.NEWS14: Pharmacia Corporation (Old Monsanto) -- Moody's affirms Pfizer's A2 rating; revises outlook to positive.NEWS15: Pfizer’s COVID-19 antiviral proves almost 90% effective in latest trial data, as U.S. passes 50 million confirmed cases of the illness.NEWS16: SHAREHOLDER ALERT: Rigrodsky Law, P.A. Announces Investigation of Arena Pharmaceuticals Inc. Buyout.NEWS17: UPDATE 1-Higher risk of heart complications from COVID-19 than vaccines -study.NEWS18: Are These Medical Stocks Undervalued Right Now?.NEWS19: Company News for Dec 14, 2021.NEWS20: Treasury yields edge higher as Fed meeting gets underway and report shows U.S. inflation worsening.NEWS21: Pfizer finds COVID pill 89% effective, some hospitals drop vaccine mandates amid labor shortage.NEWS22: Does PFE, ARNA Deal Signal Robust Pharma M&A Activity in 2022?.NEWS23: Pfizer (PFE) to Buy Arena, Boost Immuno-Inflammatory Pipeline.NEWS24: Pfizer Stops 70% Omicron Hospitalizations in South Africa Study.NEWS25: Pfizer Confirms Its Covid Pill Reduces the Risk of Hospitalization or Death by Nearly 90%.NEWS26: Swiss to start Pfizer/BioNTech jab for children aged 5-11 in January.NEWS27: Final Data Reaffirms Efficacy Of Pfizer's COVID-19 Antiviral Treatment.NEWS28: UPDATE 3-Pfizer says COVID-19 pill near 90% protective against hospitalization, death.NEWS29: Pfizer Announces Additional Phase 2/3 Study Results Confirming Robust Efficacy of Novel COVID-19 Oral Antiviral Treatment Candidate in Reducing Risk of Hospitalization or Death.NEWS30: UPDATE 5-Pfizer shot less effective in South Africa after Omicron emerges - study.NEWS31: Pfizer vaccine protecting against hospitalisation during Omicron wave - study.NEWS32: Pfizer Weaker Amid Mixed News on Vaccine, Covid Pill.NEWS33: 7 Companies Owned by PFE.
2021-12-15: NEWS1: Drug makers move forward with new COVID-19 booster candidates amid omicron’s spread and mass booster campaigns.NEWS2: VIP Contrafund Portfolio Buys Moderna Inc, Marvell Technology Inc, LyondellBasell Industries ....NEWS3: Apple Delays Office Return; Germany Rations Shots: Virus Update.NEWS4: Why Pfizer Stock Jumped Today.NEWS5: Top 10 Stocks to Buy According to Legendary Value Investor Joel Greenblatt.NEWS6: Foxhall Physician: Boosters Won't End Pandemic.NEWS7: Omicron variant accounts for 3% of U.S. COVID-19 cases, doctor notes that 'it's still early'.NEWS8: Unvaccinated Google employees could face termination next year.NEWS9: Two former Monsanto companies agree to pay $700,000, clean up superfund sites — Update.NEWS10: UPDATE 1-Americas may be left behind in access to new COVID treatments, says PAHO.NEWS11: UPDATE 1-S.Africa reports record daily COVID-19 cases as Omicron spreads.NEWS12: COVID-19: ‘We have the tools to fight Omicron,’ doctor says.NEWS13: European Medicines Committee Backs Johnson & Johnson's COVID-19 Booster Dose.NEWS14: AbbVie (ABBV) Rinvoq Gets FDA Nod for Active Psoriatic Arthritis.NEWS15: UPDATE 1-U.S. SEC to tighten insider trading rules, boost money market fund resilience.NEWS16: Cornell partially shuts down its campus due to more than 900 COVID-19 cases in possible omicron outbreak.NEWS17: Pfizer (PFE) COVID Pill Maintains Strong Efficacy, Stock Up.NEWS18: Company News for Dec 15, 2021.NEWS19: Pfizer's Xeljanz Scores FDA Nod For Active Ankylosing Spondylitis.NEWS20: 5 Top Stock Gainers for Wednesday Before Fed's Key Policy Update.NEWS21: UPDATE 1-Germany's COVID vaccine deliveries to drop sharply in Q1 -ministry.NEWS22: Inflation Is Hotter Than Ever as the Fed Makes Its Final Decision for 2021.NEWS23: Should Invesco S&P Ultra Dividend Revenue ETF (RDIV) Be on Your Investing Radar?.NEWS24: UPDATE 1-EU regulator backs J&J COVID-19 booster dose for adults.NEWS25: The Zacks Analyst Blog Highlights: Pfizer, Arena Pharma, Merck, Jazz Pharm and Sanofi.NEWS26: Why Wall Street Isn’t Freaking Out Over Omicron.NEWS27: UPDATE 2-Sanofi, GSK say COVID-19 vaccine booster candidate give good immune response.NEWS28: Pfizer set to oust AstraZeneca as top supplier of COVID-19 shots to poor nations.NEWS29: VanEck Morningstar Wide Moat ETF Buys Polaris Inc, The Western Union Co, KLA Corp, Sells Adobe ....NEWS30: Arena Pharmaceuticals INVESTOR ALERT BY THE FORMER ATTORNEY GENERAL OF LOUISIANA: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Arena Pharmaceuticals, Inc. - ARNA.NEWS31: VanEck Social Sentiment ETF Buys BlackBerry, AMC Entertainment Holdings Inc, Pfizer Inc, Sells ....NEWS32: VanEck Morningstar Durable Dividend ETF Buys Texas Instruments Inc, Qualcomm Inc, Williams Inc, ....
2021-12-16: NEWS1: Why Moderna and Pfizer Beat the Market Today.NEWS2: 3 COVID Stocks That Will Pay You Rich Dividends in 2022.NEWS3: CDC Advisors Recommend Pfizer and Moderna’s Vaccines Over J&J’s.NEWS4: UPDATE 1-Pfizer files for full FDA approval of COVID-19 vaccine in adolescents.NEWS5: Doctor says 'We have to prepare for a surge' amid the Omicron variant's surge.NEWS6: Ab Cap Fund, Inc. Buys Alphabet Inc, PepsiCo Inc, Walmart Inc, Sells Alphabet Inc, Texas ....NEWS7: CDC advisers recommend Pfizer, Moderna COVID-19 vaccines over J&J shot because of rare side effect.NEWS8: Omicron is 'very transmissible,' doctor explains, and ‘people need to stay vigilant’.NEWS9: Pfizer Will Dominate $20 Billion Covid-Pill Market in 2022, Analysis Shows.NEWS10: EMA Offers Early Access To Pfizer's COVID-19 Pill Paxlovid.NEWS11: UPDATE 1-Britain banking on COVID antivirals to get through Omicron winter.NEWS12: Arcturus Shares Shoot Higher After Additional Data From COVID-19 Vaccine Programs.NEWS13: New COVID-19 booster candidates are still being developed as omicron spreads.NEWS14: UPDATE 1-Eight heart inflammation cases among young kids who got COVID-19 shot - U.S. CDC.NEWS15: UPDATE 1-EU watchdog okays production capacity hikes for J&J, Moderna, Pfizer vaccines.NEWS16: Finding Yield With A Cash Secured Put On Pfizer Stock; Annualized Return Could Top 18%.NEWS17: 3 Stocks That Just Declared Dividend Raises.NEWS18: UPDATE 1-EU states can use Pfizer's anti-COVID pill-regulator.NEWS19: Britain banking on COVID antivirals to get through Omicron winter.NEWS20: Airline CEOs clash with lawmakers over travel recovery, pilot shortage.NEWS21: Merck's (MRK) Pneumococcal Vaccine Vaxneuvance Gets EU Nod.NEWS22: EMA Issues Advice for Potential Early Use of Pfizer’s Novel COVID-19 Oral Antiviral Candidate.NEWS23: Small S.Africa patient study shows Omicron breaking through booster shots.NEWS24: J&J's (JNJ) COVID-19 Booster Jab Gets CHMP Recommendation.NEWS25: We See Multiple Boosts Ahead for Pfizer.NEWS26: EXPLAINER-Is it safe for Americans to travel for the holidays?.NEWS27: Germany betting on booster campaign against Omicron - govt.NEWS28: Exelixis (EXEL) Initiates Study on XL092 in Advanced Solid Tumors.NEWS29: UPDATE 1-Denmark approves Merck's COVID-19 pill for at-risk patients.NEWS30: Pfizer's (NYSE:PFE) Dividend Will Be Increased To US$0.40.NEWS31: Valneva Soars on Claim Its Covid Booster Is Effective.NEWS32: INSIGHT-Refugees lack COVID shots because drugmakers fear lawsuits - documents.NEWS33: Russell Investment Funds Buys Catalent Inc, Willis Towers Watson PLC, Edison International, ....
2021-12-17: NEWS1: Why Pfizer and Johnson & Johnson Fell on Friday.NEWS2: Pfizer Delays Authorization Request for Young Childrens’ Covid Vaccine. Stock Slips..NEWS3: Pfizer Stock Dives On Initial Insight Into Covid Shots For Babies, Toddlers.NEWS4: Johnson & Johnson Leads Dow Rout After CDC Favors Pfizer, Moderna Covid Shots.NEWS5: Was The Move In Pfizer Stock Too Good To Last?.NEWS6: Pfizer pushes back plans to request authorization of COVID-19 vaccine in children ages 2 to 5.NEWS7: New York Cases Hit Record; NFL Delays Games: Virus Update.NEWS8: Pfizer Delays Plans to Seek Authorization of Covid-19 Vaccine for Young Children.NEWS9: Portfolio manager breaks down market worries over tighter monetary policy, Omicron.NEWS10: Pfizer Plans To Evaluate Third Shot For Its COVID-19 Vaccine In Kids Below 5 Years.NEWS11: COVID-19: 'This will be a really, really tough winter' for the unvaccinated, doctor explains.NEWS12: Europe taps Pfizer and BioNTech to provide 180 million more vaccines to face ‘ferocious’ Omicron threat.NEWS13: Omicron: 'There isn't a political appetite' to issue lockdowns again, doctor explains.NEWS14: Pfizer (PFE) COVID Pill Paxlovid Gets CHMP Support in Europe.NEWS15: Unvaccinated Americans facing ‘winter of severe illness and death,’ Biden warns, as omicron starts to spread across the U.S..NEWS16: U.S. CDC Recommends mRNA COVID-19 Vaccines Over J&J's Jab.NEWS17: Pharma Stock Roundup: PFE Announces Arena Buyout, LLY Ups 2021 View & More.NEWS18: Earnings: Pfizer stock falls on vaccine sales forecast, Rivian shares decline, FedEx stock rises.NEWS19: Omicron: Biden warns of winter with 'severe illness and death' as COVID-19 cases rise.NEWS20: UPDATE 3-Pfizer says pandemic could extend to 2024, vaccine data for younger children delayed.NEWS21: Omicron: 'The good news is that we have the tools,' doctor says.NEWS22: Johnson & Johnson's, Sputnik, Sinopharm COVID-19 Vaccines Show Weakness Against Omicron Variant: Study.NEWS23: Pfizer Submits Application For Approval Of COVID-19 Shot For Adolescents Aged 12 To 15.NEWS24: Biden Says Unvaccinated Face ‘a Winter of Severe Illness and Death’.NEWS25: Biden Says Unvaccinated Will Face “a Winter of Severe Illness and Death”.NEWS26: UPDATE 2-J&J, Sinopharm, Sputnik V COVID-19 shots less effective against Omicron -study.NEWS27: WRAPUP 3-Pfizer says pandemic could extend through 2023, studies three-dose vaccine course for children.NEWS28: Is Merck's Dig at Pfizer's COVID-19 Pill Justified?.NEWS29: Here's Why Shares of Bristol Myers Squibb, Eli Lilly, and Pfizer Rocketed Higher This Week.NEWS30: Coronavirus tally: Global cases of COVID-19 top 273 million and CDC panel recommends Pfizer and Moderna vaccines over J&J's.NEWS31: UPDATE 2-EU to place order with Pfizer for COVID shots adapted to Omicron.NEWS32: Moderna COVID-19 shot more likely to cause heart inflammation than Pfizer's, study shows.NEWS33: Biden Issues ‘Severe Illness’ Warning for Unvaccinated, Pfizer Seeks Full Vaccine Approval for 12- to 15-Year-Olds.NEWS34: EU to place order with Pfizer for COVID shots adapted to Omicron.NEWS35: UPDATE 1-Japan PM Kishida speeds boosters and secures Pfizer pills amid Omicron fears.NEWS36: Japan PM Kishida speaks with Pfizer CEO on speeding vaccine boosters - media.NEWS37: Fidelity Contrafund Buys Shopify Inc, Snap Inc, ServiceNow Inc, Sells Mastercard Inc, Union ....NEWS38: J&J Slips as CDC Tells People to Pick Pfizer or Moderna For Covid Shots.NEWS39: CDC Advisers Recommend Pfizer and Moderna’s Vaccines Over J&J’s.
2021-12-20: NEWS1: How Moderna Is Leading The Omicron Battle As Novavax Marks A Key Win.NEWS2: Pfizer’s VYNDAQEL®/VYNDAMAX® Reduced the Risk of All-Cause Mortality by 41% Among Patients with Transthyretin Amyloid Cardiomyopathy, Five-Year Follow-Up Data Demonstrate.NEWS3: U.S. administers 496,239,573  mln doses of COVID-19 vaccines - CDC.NEWS4: Right-wing extremists are exploiting COVID-19 conspiracies on Telegram: Disinformation analyst.NEWS5: Omicron: We could see 'a substantial surge' in NY this winter, NewYork Presbyterian Hospital CEO says.NEWS6: ‘Growth was going to slow’ whether Manchin supported Build Back Better or not: Strategist.NEWS7: Moderna Says Covid-19 Booster Dose Works Against Omicron Variant in Lab Tests.NEWS8: Omicron surge prompts COVID restrictions, Hong Kong voters stay home, Chile elects youngest president.NEWS9: Stock Market Indexes Fall Below Key Levels As Covid Fears Swarm Global Markets.NEWS10: COVID-19 testing in the U.S. has been ‘a disaster from day one,’ doctor says.NEWS11: Vaccine Stocks: Trading Moderna, Pfizer and Novavax Amid Omicron Outbreak.NEWS12: Pfizer (PFE) to Test 3-Dose COVID-19 Vaccine Regimen in Kids.NEWS13: Covid Lockdowns, Fears Send Stock Market Reeling; Moderna Climbs On Booster Study, But Fades.NEWS14: Pfizer and BioNTech to Provide European Union More Than 200 Million Additional Doses of COMIRNATY® to Help Meet Continued Need for Vaccine Supply.NEWS15: Moderna says COVID-19 booster shot offers protection against Omicron.NEWS16: UPDATE 2-French health regulator approves Pfizer vaccine for 5-11 year olds.NEWS17: Coronavirus tally: Global cases of COVID-19 near 275 million and research shows only Pfizer/Moderna vaccines with booster stop omicron.NEWS18: Pfizer and BioNTech to provide more than 200 million additional COVID vaccine doses to EU in 2022.NEWS19: Biontech, Pfizer to provide EU with extra 200 mln COVID doses.NEWS20: 3 Healthcare Stocks That Could Help Make You a Fortune.NEWS21: New Moderna tests suggest its booster works to prevent omicron.NEWS22: Thais resell private COVID-19 vaccination slots as free supplies build.NEWS23: Thai agency approves Pfizer vaccine for use in children aged 5-11.NEWS24: UPDATE 1-New Zealand links 26-year-old man's death to Pfizer COVID-19 vaccine.NEWS25: New Zealand links 26-year-old man's death to Pfizer COVID-19 vaccine.

Answer: Decrease