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:2018-12-18, Stock:RDS-B, The news for the past five days is as follows:
2018-12-11: nan
2018-12-12: NEWS1: Asian Markets Extend Gains.NEWS2: Asian Markets Extend Gains.NEWS3: Japanese Market Extends Gains.NEWS4: Japanese Market Extends Gains.
2018-12-13: NEWS1: Nigeria Files $1.1 Bln Lawsuit Against Shell, Eni in London over 2011 Oil Deal.NEWS2: Nigeria Files $1.1 Bln Lawsuit Against Shell, Eni in London over 2011 Oil Deal.NEWS3: FTSE Pares Early Gains.NEWS4: FTSE Pares Early Gains.
2018-12-14: nan
2018-12-17: nan

Answer: Decrease