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:2018-05-16, Stock:NGG, The news for the past five days is as follows:
2018-05-09: nan
2018-05-10: NEWS1: What Is The Future Prospect For Utilities And National Grid plc (LON:NG.)?.
2018-05-11: NEWS1: European Shares Ease As Dollar Steps Back From 2018 High.NEWS2: European Shares Ease As Dollar Steps Back From 2018 High.NEWS3: FTSE 100 Little Changed In Lackluster Trade.NEWS4: FTSE 100 Little Changed In Lackluster Trade.
2018-05-14: nan
2018-05-15: nan

Answer: Decrease