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:2021-10-25, Stock:PFE, The news for the past five days is as follows:
2021-10-18: NEWS1: The Most Exciting Medical Breakthrough Of The Decade?.NEWS2: Pfizer CEO says he’s gotten a COVID vaccine booster shot and most of us will, too.NEWS3: UPDATE 1-U.S. FDA to allow mixing and matching of COVID-19 boosters- NYT.NEWS4: Pfizer (PFE) Stock Sinks As Market Gains: What You Should Know.NEWS5: U.S. administers 408.8 mln doses of COVID-19 vaccines - CDC.NEWS6: Is Pfizer Stock A Buy As 'Open Season' Begins On Covid Booster Shots?.NEWS7: Pfizer Vaccine for Kids Aged 5 to 11 to Be Evaluated by EMA. Vaccine Makers’ Stocks Are Mixed..NEWS8: PFE vs. LLY: Which Stock Should Value Investors Buy Now?.NEWS9: Pfizer (PFE) Gets CHMP Nod for JAK Inhibitor Abrocitinib.NEWS10: Fauci Expects Regulators to Approve Mixing Vaccine Doses.NEWS11: UPDATE 2-EU plans to boost reach of Pfizer COVID-19 shot.NEWS12: J&J, Moderna COVID-19 Booster Jabs Near FDA Authorization.NEWS13: 2 Bargain Stocks You Can Buy Today and Hold Forever.NEWS14: Pfizer and AstraZeneca vaccines were as effective as prior infection, U.K. study finds.
2021-10-19: NEWS1: U.S. administers 409.4 mln doses of COVID-19 vaccines - CDC.NEWS2: How innovations in Covid-19 testing will play a part in this winter season.NEWS3: Pfizer/BioNTech COVID-19 vaccine highly protective in 12-18 age group - U.S. CDC study.NEWS4: Johnson & Johnson CFO talks earnings, vaccines.NEWS5: What Kind Of Shareholders Own Pfizer Inc. (NYSE:PFE)?.NEWS6: U.S. COVID-19 death toll tops 726,000 amid report FDA is set to allow mix-and-match vaccine booster shots.NEWS7: 10 Healthcare Stocks to Buy According to Billionaire Noam Gottesman’s GLG Partners.NEWS8: Johnson & Johnson May Not Have to Wait Long for Its Next Blockbuster Vaccine.NEWS9: Myovant Sciences and Pfizer Present Data on Relugolix Combination Therapy from Studies in Uterine Fibroids and Endometriosis at the American Society for Reproductive Medicine Congress.NEWS10: Vaccine-Makers Up on Likely FDA OK for Mix and Match Covid Booster.NEWS11: Why Johnson & Johnson Will Be a Bigger Winner With Boosters Than Pfizer and Moderna.
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.

Answer: Decrease