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:2021-07-21, Stock:PFE, The news for the past five days is as follows:
2021-07-14: NEWS1: Hospitalizations rise again as delta variant spreads.NEWS2: EU Regulator Weighing Mix-And-Match, Boosters For COVID-19 Shots.NEWS3: Is Pfizer Stock A Buy As The Company Plans Its Attack On Covid's Delta?.NEWS4: Pockets of the U.S. seeing potential for a 4th COVID-19 wave: Doctor.NEWS5: Israel in talks with pharma companies about COVID booster jab, PM says.NEWS6: 10 Best Psychedelic Stocks to Buy Now.NEWS7: U.S. sends 500,000 Pfizer COVID-19 doses to Costa Rica.NEWS8: Coronavirus: 'We have a tale of two pandemics' in America.NEWS9: COVID-19 Delta variant won't derail economy: Goldman Sachs.NEWS10: UPDATE 3-Vietnam says Pfizer to provide 20 mln vaccine doses, consider tech transfer.NEWS11: If You Invested $10,000 in BioNTech in 2019, This Is How Much You Would Have Today.NEWS12: What Pfizer, BioNTech, and Moderna Are Doing to Fight the Deadly Delta Variant.NEWS13: Vietnam says Pfizer to provide additional 20 mln COVID-19 vaccine doses.
2021-07-15: NEWS1: MRNA Vaccine Access Carves Up World Into Haves and Have-Nots.NEWS2: Coronavirus vaccines are a ‘miracle of science’: Doctor.NEWS3: UPDATE 1-Malaysia to stop using Sinovac vaccine after supply ends - minister.NEWS4: Pfizer says only in talks with government bodies in Thailand.NEWS5: UPDATE 3-Pfizer, BioNTech deny talks with Thai Thonburi Healthcare on vaccines.
2021-07-16: NEWS1: U.S. FDA to temporarily allow distribution of anti-smoking pill with some impurities.NEWS2: Why BioNTech Is Blasting Higher Today.NEWS3: ‘We need to continue mask wearing even with vaccination’: Doctor.NEWS4: Moderna is the Tesla of biotechs, stock price could hit $325: analyst.NEWS5: Botswana counts on other COVID-19 vaccines as it runs out of AstraZeneca shots.NEWS6: UPDATE 2-U.S. FDA sets January target to decide on approval of Pfizer's COVID-19 shot.NEWS7: Pfizer To Pay $345M To Resolve EpiPen Pricing Lawsuit: Reuters.NEWS8: Coronavirus tally: Global cases of COVID-19 near 189 million; BioNTech vaccine sees 10 times more antibodies than Sinovac one in study.NEWS9: Thai hospital tycoon sticks to guns on vaccine claims.NEWS10: Should Investors Worry About the Pfizer-BioNTech Vaccine's Lower Efficacy Against the Delta Variant?.NEWS11: 3 Dividend Stocks That Could Make You Richer in July (and Beyond).NEWS12: UPDATE 2-Pfizer agrees to pay $345 mln to resolve EpiPen pricing lawsuit.
2021-07-19: NEWS1: Pfizer (PFE) Stock Moves -0.5%: What You Should Know.NEWS2: ‘Vaccination is really our route out of this pandemic’: Doctor.NEWS3: The spread of misinformation is a 'globalized, anti-vaccine, anti-science empire:' Expert.NEWS4: Covid-19 hospitalizations rise among unvaccinated.NEWS5: More athletes test positive for Covid days ahead of Olympics.NEWS6: Why the market can’t afford to ignore the COVID Delta variant.NEWS7: Japan Health Ministry Supports Lowering Minimum Age For Moderna's COVID-19 Vaccine To 12 Years.NEWS8: Pfizer says FDA's decision to approve its COVID-19 vaccine is expected by January.NEWS9: Delta variant: 'We’re going to see breakthrough cases' and that's OK, doctor says.NEWS10: FDA Supports Limited Distribution Of Pfizer's Antismoking Pill, Chantix.NEWS11: Introducing Pfizer (NYSE:PFE), A Stock That Climbed 11% In The Last Year.NEWS12: Merck's Pneumococcal Vaccine Lands FDA Nod, Just Few Weeks After Its Rival.NEWS13: Pfizer Announces New Investor Relations Leader.NEWS14: UK rules out universal vaccination for teenagers for now.
2021-07-20: NEWS1: UPDATE 5-Australia, under lockdown, sees worrying jump in COVID-19 cases.NEWS2: JNJ Option Traders Ready for Positive Earnings.NEWS3: ‘Likelihood of reaching herd immunity at this point is fairly low’: Epidemiologist.NEWS4: Immunity provided by COVID-19 vaccines likely to ‘wane, not plummet,’ CDC director tells Congress.NEWS5: Immunity from the COVID-19 vaccines likely to ‘wane, and not plummet,’ CDC director tells Congress.NEWS6: Vaccine Makers Gain After Fox News Anchors Become Jab Supporters.NEWS7: 3 Areas Where Pfizer Is Crushing Moderna.NEWS8: FOCUS-Global quest underway to speed COVID-19 vaccine trials.NEWS9: Are Booster Doses of Pfizer's and Moderna's COVID Vaccines on the Way?.NEWS10: Have $3,000? 2 Smart Growth Stocks to Buy Right Now.

Answer: Decrease