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:2018-12-31, Stock:SBAC, The news for the past five days is as follows:
2018-12-21: NEWS1: SBAC Makes Notable Cross Below Critical Moving Average.NEWS2: SBAC Makes Notable Cross Below Critical Moving Average.
2018-12-24: nan
2018-12-26: NEWS1: RSI Alert: SBA Communications (SBAC) Now Oversold.NEWS2: RSI Alert: SBA Communications (SBAC) Now Oversold.
2018-12-27: nan
2018-12-28: nan

Answer: Decrease