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:2021-05-20, Stock:PFE, The news for the past five days is as follows:
2021-05-13: NEWS1: UPDATE 1-Pfizer got no response to offers to supply vaccine to Brazil last year, exec says.NEWS2: Delayed second Pfizer COVID-19 shot produces more antibodies -study.NEWS3: Top Stock Reports for Mastercard, Home Depot & Walt Disney.NEWS4: CDC approves those fully vaccinated to largely ditch masks indoors.NEWS5: CDC recommends Pfizer vaccine for children 12 to 15 years-old.NEWS6: Pfizer got no response to offers to supply vaccine to Brazil last year, exec says.NEWS7: UK Study Answers Question If Two Doses Of COVID-19 Vaccines Can Be Mix-Matched?.NEWS8: Pfizer (PFE) COVID-19 Vaccine for Adolescents Endorsed by CDC.NEWS9: ‘Vaccine envy is real,’ says a Cleveland Clinic pediatrician. Here’s what she’s telling parents and teens about the COVID-19 vaccine.NEWS10: UAE allows Pfizer COVID-19 dose for emergency use in 12-15 year olds.NEWS11: Global tally of COVID-19 cases tops 160 million as U.S. gears up to vaccinate 12- to 15-year-olds.NEWS12: What the Yankees COVID-19 outbreak proves: no vaccine is 100% effective.NEWS13: CDC Panel Recommends Pfizer’s Covid-19 Vaccine in Younger Teens. What Comes Next..NEWS14: RPT-INSIGHT-Top scientists question the need for COVID-19 booster shots.NEWS15: Mixing Pfizer and AstraZeneca Vaccines Increases Mild Side Effects but Is Safe, Study Shows.NEWS16: CDC Panel Backs Using Pfizer-BioNTech COVID-19 Vaccine For 12-15 Age Group.NEWS17: Mixing Pfizer and AstraZeneca COVID-19 vaccines increases mild side effects but is safe, study shows.NEWS18: Coronavirus tally: Global cases of COVID-19 top 160 million and India nears 24 million cases.NEWS19: INSIGHT-Top scientists question the need for COVID-19 booster shots.NEWS20: Why Wall Street Is Worried About Pfizer Despite Its COVID Vaccine Success.NEWS21: 4 Things About Pfizer That the Smartest Investors Know.NEWS22: Japan vaccine chief blames drug approval system for slow inoculation drive.NEWS23: UPDATE 2-Australia seeks deal with Moderna for domestic production of mRNA vaccines.
2021-05-14: NEWS1: Brazil judge rules ex-health minister can remain silent in COVID inquiry.NEWS2: Doctor: 'I will be wearing masks indoors for the foreseeable future’.NEWS3: COVID-19 vaccinations and mitigation turned the corner on school reopening: AFT President.NEWS4: COVID SCIENCE-Delayed 2nd Pfizer/BioNTech shot boosts antibodies in elderly; COVID-19 obesity risk higher for men.NEWS5: People choosing to ditch their masks will be a ‘gradual process’: Doctor.NEWS6: Delaying second Pfizer COVID-19 shot boosts immune response in over-80s, study finds.NEWS7: Pfizer says 'good reason' to believe in success of anti-viral drug.NEWS8: U.S. Will Send No New J&J Vaccines Doses to States Next Week.NEWS9: Corcept's (CORT) Lead Drug Korlym Aids Growth Amid Competition.NEWS10: Why Pfizer Is Still a Top Stock for 2021.NEWS11: Delaying second Pfizer COVID shot boosts immune response in over-80s, study finds.NEWS12: Why Pfizer Stock Didn't Soar After Its Fantastic Q1 Results.NEWS13: 3 Things About Moderna That The Smartest Investors Know.NEWS14: UPDATE 1-Vietnam seeks 31 mln doses of Pfizer-BioNTech vaccine in 2021.NEWS15: ‘Covid Zero’ Havens Find Reopening Harder Than Taming Virus.NEWS16: PRESS DIGEST- Financial Times - May 14.
2021-05-17: NEWS1: What this Cleveland Clinic pediatrician and vaccine expert is telling teens and their parents about getting COVID-19 shots.NEWS2: Why Kaiser and Mayo Clinic are investing $100 million in Medically Home.NEWS3: CDC to remain vigilant for case spikes after new mask guidance.NEWS4: UPDATE 1-Germany to offer free COVID-19 shots for all adults from June 7.NEWS5: UPDATE 1-Backers of WTO vaccine waiver ask opponents to join talks - document.NEWS6: Reinventing health care in a post-pandemic world.NEWS7: Backers of WTO vaccine waiver ask opponents to join talks - document.NEWS8: Sanofi Executives Say Covid Vaccine Could Be ‘Universal Booster’.NEWS9: UPDATE 2-WHO chief urges COVID-19 vaccine makers to advance doses for COVAX.NEWS10: UPDATE 2-EU regulator backs month-long storage of Pfizer COVID-19 vaccine in fridges.NEWS11: 10 Best Dividend Stocks on Robinhood.NEWS12: CDC: 3 million teens between ages of 12 and 17 have received at least one COVID-19 shot.NEWS13: Pfizer-Bristol Myers' Eliquis Flops In Post-Heart Surgery Trial.NEWS14: Covid-19 Vaccine Works, Even if Side Effects Differ for All, Doctors Say.NEWS15: GSK and Sanofi optimistic about COVID vaccine after phase 2 trials.NEWS16: Sanofi and Glaxo Are Back With a  Covid-19 Vaccine.
2021-05-18: NEWS1: U.S. promises to send 80M vaccine doses to other countries, is it enough?.NEWS2: UPDATE 1-Spain approves Pfizer shots for under-60s who got AstraZeneca first dose -El Pais.NEWS3: UPDATE 1-U.S. vaccinated 600,000 12-15 year olds last week -health official.NEWS4: There's 'no data' about getting multiple vaccines at the same time: CDC Director.NEWS5: UPDATE 1-Singapore seeks COVID-19 vaccination for all adults by August.NEWS6: UPDATE 1-Spanish study finds AstraZeneca vaccine followed by Pfizer dose is safe and effective.NEWS7: Singapore approves COVID-19 vaccine for use in 12 to 15-year-olds.NEWS8: Here's Why This Top Stock Is a Buy on the Dip.NEWS9: Here's 1 Surprising Ranking Where Moderna Handily Beats Pfizer.NEWS10: Vaccine manufacturer Oxford Biomedica doubles sales forecasts as AstraZeneca ups orders.NEWS11: GSK recovers ground as it reports more positive COVID vaccine trial data.NEWS12: Why COVID-19 Vaccines Could Be the Start of a Vaccine Revolution.
2021-05-19: NEWS1: COVID vaccines mint new billionaires as BioNTech and Moderna CEOs' wealth soars.NEWS2: Spain to lift suspension of AstraZeneca vaccine for second dose in people under 60.NEWS3: COVID-19 variants 'are always going to be the wild card': Doctor.NEWS4: CORRECTED-Fauci expects COVID-19 vaccines for kids in late-2021, sees need for booster shot.NEWS5: There’s ‘always a concern' of another COVID-19 wave: Doctor.NEWS6: FDA Official Backs COVID-19 Booster Shots In Vaccinated People Within A Year: CNBC.NEWS7: Pfizer To Start Making COVID-19 Vaccine Component In Ireland By 2021 End.NEWS8: BioNTech (BNTX) Up More Than 100% So Far This Year: Here's Why.NEWS9: 'Vaccinated people are exceedingly safe,' doctor stresses amid reports of breakthrough cases.NEWS10: UPDATE 1-Pfizer to produce COVID-19 vaccine component in Ireland.NEWS11: Sarepta (SRPT) Rises on Robust DMD Gene Therapy Study Data.NEWS12: Is Novavax Stock A Sell After Announcing Another Covid Vaccine Delay?.NEWS13: CORRECTED-UPDATE 4-IOC reassures anxious Japan that Olympics will be safe.NEWS14: UK launches extensive trial of third booster shots of Covid vaccines.

Answer: Rise