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:2019-08-28, Stock:NGG, The news for the past five days is as follows:
2019-08-21: NEWS1: Blackout raises alarms on UK energy resilience.
2019-08-22: nan
2019-08-23: nan
2019-08-26: NEWS1: National Grid/UK energy: dark material.
2019-08-27: NEWS1: NGG Finance plc -- Moody's assigns Baa3 rating to National Grid hybrids; stable outlook.

Answer: Decrease