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:2019-06-24, Stock:NGG, The news for the past five days is as follows:
2019-06-17: nan
2019-06-18: nan
2019-06-19: nan
2019-06-20: NEWS1: Bullish Two Hundred Day Moving Average Cross - NGG.NEWS2: Bullish Two Hundred Day Moving Average Cross - NGG.NEWS3: Power Companies Want to Tap the Tesla Batteries in Your Home.
2019-06-21: NEWS1: Clean power to overtake fossil fuels in Britain in 2019.

Answer: Decrease