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:2021-03-18, Stock:PFE, The news for the past five days is as follows:
2021-03-11: nan
2021-03-12: nan
2021-03-15: NEWS1: UPDATE 1-Ocugen seeks to sell 100 mln Indian vaccine doses in U.S. in 2021.NEWS2: Lifted COVID-19 restrictions becoming ’problematic’ for airline workers: AFA President.NEWS3: Vaccine hesitation could cause ‘back-sliding’ in COVID-19 progress: Expert.NEWS4: Most Americans who got first COVID-19 vaccine dose also got final shot- CDC.
2021-03-16: NEWS1: Enseo technology makes staying in a hotel contactless amid pandemic.NEWS2: 59% of small businesses say health of economy is poor: U.S. Chamber of Commerce.NEWS3: The COVID-19 rescue plan ‘isn’t nearly enough’ for the housing sector: NAA CEO.NEWS4: EU regulator says ‘no indication’ AstraZeneca vaccine causes blood clots.NEWS5: Moderna starts COVID-19 vaccine candidate testing on children, as U.S. cases and deaths tick up.NEWS6: Solid Biosciences (SLDB) Announces DMD Study Data, Stock Down.NEWS7: UPDATE 1-South Africa approves Pfizer-BioNTech COVID vaccine for emergency use.NEWS8: J&J (JNJ) Outperforms the Industry Year to Date: Here's Why.NEWS9: Moderna Begins Testing Covid-19 Vaccine In Children.NEWS10: Why Zoetis Is the Pfizer of Animal Healthcare.NEWS11: REFILE-UPDATE 2-Pfizer to deliver 200 mln vaccine doses to EU in second quarter.NEWS12: European Commission to accelerate delivery of 10 million doses from Pfizer and BioNTech.NEWS13: Forget AMC and Gamestop: These 2 Popular Robinhood Stocks Are Better Buys.NEWS14: EU Commission says Pfizer/BioNTech to deliver a total of over 200 mln vaccine doses in Q2.NEWS15: UPDATE 1-Japan PM Suga receives COVID-19 vaccination ahead of Biden meeting in U.S..NEWS16: European capitals co-ordinated suspension of Oxford/AstraZeneca Covid jab.
2021-03-17: NEWS1: Did Pfizer Just Trip Up AbbVie's Chances For A New Arthritis Drug?.NEWS2: Pfizer says it is on course to deliver UK COVID vaccine supplies.NEWS3: Jackbox CEO on post-pandemic outlook: ‘The future looks really bright’ .NEWS4: COVID-19 variants are ‘nothing to get overly worried about’: Doctor.NEWS5: Pfizer/BioNTech COVID-19 Vaccination Could Protect Pregnant Women, Newborns, Study In Israel Suggests: Reuters.NEWS6: COVID-19 vaccines get an endorsement from Trump, as daily U.S. deaths rise back above 1,000.NEWS7: UPDATE 1-UK says more than 25 million people have had first COVID shot.NEWS8: AstraZeneca vaccine risk is ‘not concerning, appears more politically motivated’: doctor.NEWS9: More States Open Vaccinations to All.NEWS10: 3 Revolutionary Top Stocks to Buy Now.

Answer: Decrease