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:2019-10-17, Stock:EXC, The news for the past five days is as follows:
2019-10-10: NEWS1: Avista (AVA) Receives PUC Approval for Oregon Rate Case.
2019-10-11: nan
2019-10-14: nan
2019-10-15: NEWS1: Exelon Appoints Calvin G. Butler Jr. as Interim CEO of Exelon Utilities.
2019-10-16: NEWS1: Wall Street Declines Wednesday.NEWS2: Chief of Exelon’s Utility Business Retires During Federal Probe.NEWS3: What Kind Of Shareholders Own Exelon Corporation (NASDAQ:EXC)?.

Answer: Decrease