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:2021-03-16, Stock:PFE, The news for the past five days is as follows:
2021-03-09: nan
2021-03-10: nan
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.

Answer: Rise