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:2020-06-22, Stock:PFE, The news for the past five days is as follows:
2020-06-15: NEWS1: Pfizer (PFE) Stock Sinks As Market Gains: What You Should Know.NEWS2: UK funds human trials of potential COVID-19 vaccine from Imperial.NEWS3: Merck, Chevron share losses lead the way, but Dow flat.NEWS4: Germany Makes a Big Bet On a Covid-19 Vaccine Developer Once Coveted by Trump.NEWS5: Mylan N.V. -- Moody's: Upcoming debt financing brings Mylan/Upjohn one step closer to Viatris creation.NEWS6: Billions or trillions: The great coronavirus trade-off.
2020-06-16: NEWS1: Merck and Pfizer’s SGLT2 Inhibitor STEGLATROTM (ertugliflozin) Meets Primary Endpoint in VERTIS CV Trial for Patients with Type 2 Diabetes and Atherosclerotic Cardiovascular Disease.NEWS2: Moderna Is Racing Toward a Covid-19 Vaccine, but the Field Is Getting Crowded.NEWS3: Eli Lilly’s Cancer Drug Succeeded Where Pfizer Failed. What It Means for Their Stocks..NEWS4: U.S. narrows list of promising COVID-19 vaccine candidates to about 7.NEWS5: Pfizer Invites Public to View and Listen to Webcast of July 28 Conference Call with Analysts.NEWS6: Singapore scientists to start human trials of COVID-19 vaccine in August.
2020-06-17: NEWS1: Coronavirus update: States struggle to balance reopening with creeping rise in cases.NEWS2: Lilly Stock Has a 10% Upside, Guggenheim Says.NEWS3: Thirty-nine-year-old wife of Kentucky congressman dies suddenly.NEWS4: Merck's Steglatro Non-Inferior in Cardiovascular Outcomes Study.NEWS5: Upjohn Inc. -- Moody's assigns Baa3 unsecured rating to Upjohn/Viatris' US notes offering; outlook stable.NEWS6: EU calls for global alliance to buy COVID-19 vaccines up front.NEWS7: Lilly Gains as Verzenio Meets Early Breast Cancer Study Goal.NEWS8: Upjohn Finance B.V. -- Moody's assigns Baa3 unsecured rating to Upjohn/Viatris' Euro notes offering; outlook stable.NEWS9: Upjohn Finance B.V. -- Moody's assigns Baa3 first-time issuer ratings to Upjohn/Viatris; outlook stable.
2020-06-18: NEWS1: Dow's 39-point drop led by losses for shares of American Express, Goldman Sachs.NEWS2: Dow's 39-point drop led by losses for shares of American Express, Goldman Sachs.NEWS3: American Express, Pfizer share losses lead Dow's 110-point fall.NEWS4: Dow's 38-point drop led by losses in shares of American Express, Cisco.NEWS5: Dow's 38-point drop led by losses in shares of American Express, Cisco.NEWS6: Dow falls 39 points on losses in shares of UnitedHealth, Cisco.NEWS7: Pfizer's hemophilia gene therapy shows sustained effect in early-stage study.NEWS8: Pfizer and Sangamo Announce Updated Phase 1/2 Results Showing Sustained Factor VIII Activity Levels and No Bleeding Events or Factor Usage in 3e13 vg/kg Cohort Following giroctocogene fitelparvovec (SB-525) Gene Therapy.NEWS9: Pfizer and Sangamo Announce Updated Phase 1/2 Results Showing Sustained Factor VIII Activity Levels and No Bleeding Events or Factor Usage in 3e13 vg/kg Cohort Following giroctocogene fitelparvovec (SB-525) Gene Therapy.NEWS10: Upjohn Announces Pricing of Senior Notes in Connection with the Proposed Combination of Mylan and Upjohn.
2020-06-19: NEWS1: Upjohn Finance B.V. -- Moody's assigns Baa3 unsecured rating to Upjohn/Viatris' Euro notes offering; outlook stable.NEWS2: Upjohn Inc. -- Moody's assigns Baa3 unsecured rating to Upjohn/Viatris' US notes offering; outlook stable.

Answer: Decrease