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:2020-10-08, Stock:PFE, The news for the past five days is as follows:
2020-10-01: nan
2020-10-02: nan
2020-10-05: nan
2020-10-06: NEWS1: Expect Pfizer/BioNTech and Moderna Coronavirus Vaccine Data Readouts in November-December, U.S. Vaccine Program Head Says.NEWS2: U.S. vaccine program head Slaoui expects Pfizer, Moderna vaccine data readouts in Nov-Dec.NEWS3: Here's Why BioNTech's Stock Price Jumped Today.NEWS4: Why Exelixis Jumped 10% in September.NEWS5: US STOCKS-Tech sell-off weighs on Wall St as Powell warns on recovery.NEWS6: Russian COVID-19 vaccine trials have yet to start in Brazil, lagging rivals.NEWS7: Pfizer CEO says won't discuss FDA's coronavirus vaccine guidance with White House.NEWS8: EU Regulators Undertake Rolling Review of Pfizer and BioNTech Vaccine Candidate.NEWS9: US STOCKS-S&P, Nasdaq dip as Powell warns on economic recovery.NEWS10: U.S. FDA asks COVID-19 vaccine developers for two months of safety data.NEWS11: COVID-19 vaccine may be ready by year-end - WHO's Tedros.NEWS12: US STOCKS-S&P, Dow muted with eyes on more stimulus, Powell address.
2020-10-07: NEWS1: BUZZ-U.S. STOCKS ON THE MOVE-Workday, Stable Road Acquisition, RedHill Biopharma, Fox Corp, Disney.NEWS2: Pfizer, Sangamo Begin Phase 3 Dosing Study Of Giroctocogene Fitelparvovec .NEWS3: At This Stage of the Vaccine Race, Is Now a Good Time to Buy iBio Stock?.NEWS4: Q&A: Where are we in the COVID-19 vaccine race?.

Answer: Rise