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:2021-12-16, Stock:NGG, The news for the past five days is as follows:
2021-12-09: nan
2021-12-10: NEWS1: Western Power Distribution plc -- Moody's announces completion of a periodic review of ratings of Western Power Distribution plc.NEWS2: National Grid Electricity System Operator Ltd -- Moody's announces completion of a periodic review of ratings of National Grid Electricity System Operator Ltd.NEWS3: National Grid Gas plc -- Moody's announces completion of a periodic review of ratings of National Grid Gas plc.NEWS4: National Grid plc -- Moody's announces completion of a periodic review of ratings of National Grid plc.
2021-12-13: NEWS1: National Grid Climate Leaders: Meet Natalie Skoblow.
2021-12-14: nan
2021-12-15: NEWS1: National Grid and Town of Hempstead to Develop One of the First Green Hydrogen Blending Projects in the Country.NEWS2: National Grid and Town of Hempstead to Develop One of the First Green Hydrogen Blending Projects in the Country.NEWS3: National Grid Climate Leaders: Meet Julia Gold.

Answer: Decrease