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:2018-05-11, Stock:NGG, The news for the past five days is as follows:
2018-05-04: NEWS1: [$$] Caterpillar Names National Grid Executive as New CFO.NEWS2: Caterpillar names National Grid's Andrew Bonfield as CFO.NEWS3: Caterpillar Names Andrew Bonfield CFO - Quick Facts.NEWS4: Caterpillar Names Andrew Bonfield CFO - Quick Facts.NEWS5: National Grid CFO Bonfield steps down.
2018-05-07: nan
2018-05-08: nan
2018-05-09: nan
2018-05-10: NEWS1: What Is The Future Prospect For Utilities And National Grid plc (LON:NG.)?.

Answer: Decrease