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:2019-09-23, Stock:EXC, The news for the past five days is as follows:
2019-09-16: nan
2019-09-17: nan
2019-09-18: NEWS1: Johns Hopkins, McCormick ink solar energy deal with Constellation.NEWS2: Constellation Signs 175 MW Solar Agreement to Supply an Aggregation of Three Commercial Customers.
2019-09-19: NEWS1: Exelon's (EXC) Unit to Sell 175 MW Clean Energy to Customers.
2019-09-20: NEWS1: Duke Energy to Apply for Nuclear Stations Licenses Renewal.

Answer: Decrease