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:2021-10-27, Stock:PFE, The news for the past five days is as follows:
2021-10-20: NEWS1: Moderna and J&J Covid-19 Boosters, Mixing and Matching Authorized by the FDA.NEWS2: People who got J&J’s COVID-19 shot can get a booster. Which one should they get?.NEWS3: FDA Authorizes Mix-and-Match, J&J, and Moderna Boosters.NEWS4: FDA backs Moderna and J&J boosters, authorizes mixing COVID vaccines.NEWS5: UPDATE 3-U.S. FDA clears Moderna, J&J COVID-19 boosters, backs use of different vaccine for boost.NEWS6: Advisory Committee on Immunization Practices Votes to Recommend Routine Use of Pfizer’s PREVNAR 20™ (Pneumococcal 20-valent Conjugate Vaccine) in Adults.NEWS7: U.S. administers 410.2 mln doses of COVID-19 vaccines - CDC.NEWS8: Doctor on Covid-19: ‘This is a virus that is really here to stay’.NEWS9: Top Analyst Reports for Microsoft, Mastercard & Pfizer.NEWS10: Covid-19 Vaccine for Kids Ages 5-11 to Be Given at Pediatric Offices, Schools Once Authorized.NEWS11: Mass. hospitals, doctors start ordering pediatric Covid vaccines.NEWS12: Pfizer Covid-19 vaccine is 93% effective against adolescent hospitalizations: CDC.NEWS13: Britain secures COVID-19 antivirals from Merck and Pfizer.NEWS14: Are Investors Undervaluing Pfizer (PFE) Right Now?.NEWS15: White House Lays Out Vaccine Rollout Plan for Kids Aged 5 to 11.NEWS16: White House details plan to vaccinate children ages 5 to 11 against Covid-19.NEWS17: 5 Top Stock Gainers for Thursday: Ford, Pinterest, Pfizer.NEWS18: UPDATE 2-U.S. readies plan to vaccinate kids ages 5-11 against COVID-19.NEWS19: White House: Children will be able to get COVID-19 shots from their pediatricians.NEWS20: Merck, Pfizer Gain on Deals With Britain for Antivirals.NEWS21: Retirement Stock Portfolio: 10 Healthcare Stocks To Consider.NEWS22: White House to lay out plan to vaccinate kids ages 5 to 11 -NBC News.NEWS23: Mnuchin Is Investing in Blockchain -- Not Crypto: Milken Update.
2021-10-21: NEWS1: Boosters could create more enduring immunity for new Covid-19 variants: Doctor.NEWS2: CDC Advisors Unanimously Back Mixing Covid-19 Vaccine Boosters.NEWS3: CDC panel backs expanded rollout of COVID-19 boosters.NEWS4: Pfizer-BioNTech Covid Booster Shines As CDC Discusses Mix-And-Match Plan.NEWS5: In-N-Out refusing to check vaccination status at some CA locations.NEWS6: Why BioNTech Stock Jumped Today.NEWS7: U.S. administers over 411 mln doses of COVID-19 vaccines - CDC.NEWS8: What's in Store for Teladoc Health's (TDOC) Earnings in Q3?.NEWS9: UPDATE 5-U.S. CDC signs off on Moderna, J&J COVID-19 vaccine boosters, mix-and-match shots.NEWS10: Merck Scores Unexpectedly in Pneumococcal Vaccine Fight With Pfizer. What It Means for the Stocks..NEWS11: Why BioNTech Shares Are Rising.NEWS12: Messenger RNA —spotlighted by Pfizer and Moderna's Covid vaccines — helps Peninsula biotech land $80M round.NEWS13: CDC gathers to discuss which patient groups should get Moderna and J&J COVID-19 vaccine boosters, and Pfizer reports positive results from booster trial.NEWS14: UPDATE 3-Pfizer, BioNTech say COVID-19 booster shot showed high efficacy in large study.NEWS15: Pfizer-BioNTech Covid-19 Booster Shot Was 95.6% Effective in Large Trial, Companies Say.NEWS16: Pfizer Covid-19 Booster Found to Restore Efficacy Back to Near 96%.NEWS17: Moderna Stock Is Rising After FDA Authorization of Mix-and-Match Boosters.NEWS18: FDA Clears 'Mix and Match' Covid-19 Booster Shots.NEWS19: The Zacks Analyst Blog Highlights: Microsoft, Mastercard, Pfizer, PepsiCo and Merck.NEWS20: Pfizer, BioNTech Report 95.6% Efficacy for Covid Vaccine Booster.NEWS21: CDC's Advisory Committee Backs Pneumococcal Vaccine From Pfizer, Merck.NEWS22: Pfizer and BioNTech say Phase 3 trial found booster dose of COVID vaccine had 95.6% efficacy against disease.NEWS23: Pfizer, BioNTech report high efficacy of COVID-19 booster shot in study.NEWS24: Pfizer and BioNTech Announce Phase 3 Trial Data Showing High Efficacy of a Booster Dose of Their COVID-19 Vaccine.NEWS25: Pfizer vaccine very effective against Delta variant in adolescents in Israel - study.
2021-10-22: NEWS1: 'We're definitely not doing enough' to help global vaccinations: Former US Commerce Sec..NEWS2: The Elizabeth Holmes Trial: Former Pfizer Scientist Says Theranos Used Pharma Logo Without Permission.NEWS3: Why Novavax Fell by 3% Today.NEWS4: Moderna Slapped With Sell Rating Despite CDC Authorization For Covid Boosters.NEWS5: Logistics and distribution key to fighting COVID-19 worldwide, says former commerce secretary..NEWS6: U.S. administers nearly 412 mln doses of COVID-19 vaccines - CDC.NEWS7: COVID SCIENCE-COVID-19 vaccines not linked to pregnancy loss; mixing vaccines may confer greater protection.NEWS8: Pfizer says vaccine is 90.7% effective in kids aged 5 to 11: BBG.NEWS9: EXPLAINER-Americans wonder: Which COVID-19 booster is best?.NEWS10: CDC approves Moderna and J&J Covid-19 vaccine boosters.NEWS11: Pfizer data boosts hopes children will soon be eligible for COVID-19 vaccine, and CDC expands booster program.NEWS12: Q3 Earnings Season Moving Along.NEWS13: Pfizer and BioNTech Covid Vaccine Is Nearly 91% Effective in Children.NEWS14: Reasons for Optimism: Q3 Earnings, Infrastructure.NEWS15: Pharma Stock Roundup: JNJ Mixed Q3 Results, FDA Nod to Mix & Match COVID Boosters.NEWS16: Pfizer's (PFE) Comirnaty Booster Dose Achieves 95.6% Efficacy.NEWS17: Pfizer says COVID-19 vaccine is more than 90% effective in kids 5 to 11.NEWS18: Walmart, Walgreens U.S. stores roll out Moderna, J&J COVID-19 booster shots.NEWS19: Fastly, PagerDuty, Johnson & Johnson, Moderna and Pfizer highlighted as Zacks Bull and Bear of the Day.NEWS20: Pfizer-BioNTech Covid-19 Vaccine for Kids Was Safe and 90.7% Effective, Companies Say.NEWS21: UPDATE 1-Americans can mix and match COVID-19 boosters but original vaccine recommended -Fauci.NEWS22: UPDATE 2-Pfizer/BioNTech COVID-19 vaccine shows 90.7% efficacy in trial in children.NEWS23: Mix-and-Match Booster Rollout Is Set to Start. Nearly 100 Million People Could Be Eligible..NEWS24: Pfizer/BioNTech COVID-19 vaccine shows 90.7% efficacy in trial in children.NEWS25: Pfizer-BioNTech Covid Vaccine Shows Efficacy Above 90% for Kids.NEWS26: Why BioNTech and RedHill Are Soaring This Week, While Novavax Is Sinking.NEWS27: CDC approves expanded rollout of COVID-19 boosters.
2021-10-25: NEWS1: Will Pfizer ETFs Gain on Positive COVID-19 Booster Dose Data?.NEWS2: 11 Best High Dividend Stocks Under $50.NEWS3: Pfizer CEO says company will produce 4 billion COVID-19 doses in 2022.NEWS4: Albert Bourla Pfizer CEO speaks to Yahoo  Finance.NEWS5: Pfizer CEO: We will 'immediately' distribute vaccine to kids  once we have FDA approval.NEWS6: Pfizer CEO on drug pricing: it's a real issue in the U.S..NEWS7: Pfizer CEO: We are 'running the starters' for COVID-19 pill.NEWS8: Pfizer CEO explains how it's getting vaccines to the 'poorest of countries'.NEWS9: Pfizer CEO explains how the drugmaker pivoted its COVID-19 vaccine distribution.NEWS10: Moderna Data Shows Covid-19 Vaccine Produced Strong Immune Response in 6- to 11-Year-Olds.NEWS11: Fauci says U.S. is on track to start vaccinating kids aged 5 to 11 by November, as FDA advisers prepare to meet on the matter.NEWS12: Fauci says U.S. on track to start vaccinating kids aged 5 to 11 by November, as FDA advisers prepare to meet on the matter.NEWS13: Moderna Announces Positive Data on Covid-19 Vaccine in Children.NEWS14: Yahoo Finance All Markets Summit 2021: The Path Forward.NEWS15: Moderna says its COVID-19 shot generates 'robust' response in children 6 to 11.NEWS16: How Investors Can Grab Better Returns for Medical Using the Zacks ESP Screener.NEWS17: Moderna Rises on Report Its Covid Shot Shows Promise in Children 6-11.NEWS18: FDA committee to discuss BioNTech/Pfizer's COVID-19 shot in children 5 to 11.NEWS19: 3 Stocks to Add to Your Portfolio in the Event of a Market Downturn.NEWS20: Twitter CEO Jack Dorsey is right to scare everyone about hyperinflation: Morning Brief.
2021-10-26: NEWS1: FDA Panel Backs Pfizer’s Covid Vaccine for Children 5 to 11.NEWS2: University Hospital to mandate boosters for those who received JNJ vaccine.NEWS3: FDA Advisory Committee Votes in Favor of Granting Emergency Use Authorization for the Pfizer-BioNTech COVID-19 Vaccine in Children 5 to <12 Years.NEWS4: Pfizer-BioNTech Covid-19 Vaccine for Young Kids Backed by FDA Advisers.NEWS5: Pfizer (PFE) Outpaces Stock Market Gains: What You Should Know.NEWS6: Australia drugs regulator approves booster doses of Pfizer COVID-19 vaccine.NEWS7: Why Did Myovant Sciences Shares Fall Despite Q2 Earnings Beat?.NEWS8: U.S. administers over 415 mln doses of COVID-19 vaccines - CDC.NEWS9: Trillium Securityholders Approve Acquisition by Pfizer.NEWS10: Vaccine Stocks Pop After FDA Experts Recommend Pfizer's Covid Vaccine In Children.NEWS11: FDA advisors recommend BioNTech and Pfizer’s COVID-19 shot for children.NEWS12: Pfizer (PFE) Reports Next Week: Wall Street Expects Earnings Growth.NEWS13: Spain to give booster dose of Pfizer or Moderna to people who had J&J shot.NEWS14: Pfizer, BioNTech Diverge As FDA Panel Mulls Covid Vaccine In Children.NEWS15: UPDATE 4-U.S. FDA advisers back Pfizer/BioNTech COVID-19 vaccine for children.NEWS16: Vietnam to vaccinate children against COVID-19 from next month.NEWS17: U.S. FDA advisers weigh Pfizer/BioNTech COVID-19 vaccine in children.NEWS18: EXPLAINER-What to know about the COVID-19 vaccine for U.S. children.NEWS19: Pfizer, BioNTech Children's Vaccine to be  Reviewed by FDA Advisory Group.NEWS20: Facebook’s Swimming in Profit as Much as It’s Mired in Controversy.NEWS21: Why Pfizer and BioNTech Will Be Bigger Winners Than Moderna With Mix-and-Match Boosters.NEWS22: FDA Advisors to Discuss Covid-19 Vaccines for Children Today. What Comes Next..

Answer: Decrease