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:2019-10-21, Stock:NGG, The news for the past five days is as follows:
2019-10-14: NEWS1: National Grid says it will reconnect natgas customers after NY order.NEWS2: Does National Grid plc's (LON:NG.) CEO Salary Reflect Performance?.
2019-10-15: nan
2019-10-16: nan
2019-10-17: NEWS1: A Battle Over the Future of Energy Plays Out in New York.
2019-10-18: nan

Answer: Decrease