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:2018-10-22, Stock:PSA, The news for the past five days is as follows:
2018-10-15: nan
2018-10-16: NEWS1: Public Storage’s Affiliate, Shurgard Self Storage SA, Completes its Initial Global Offering.
2018-10-17: nan
2018-10-18: NEWS1: Real Estate Select Sector SPDR Fund Experiences Big Outflow.NEWS2: Real Estate Select Sector SPDR Fund Experiences Big Outflow.
2018-10-19: NEWS1: An industrial corridor in Alexandria may get its first apartments — courtesy of Public Storage.

Answer: Decrease