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:2018-12-20, Stock:RDS-B, The news for the past five days is as follows:
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
2018-12-18: NEWS1: Asian Markets Mostly Higher Ahead Of Fed Decision.NEWS2: Asian Markets Mostly Higher Ahead Of Fed Decision.NEWS3: European Markets Finished Lower In Cautious Trade.NEWS4: European Markets Finished Lower In Cautious Trade.NEWS5: Market Chatter: Shell Reportedly in Talks to Acquire Endeavor Energy in $8 Bln Deal.NEWS6: Market Chatter: Shell Reportedly in Talks to Acquire Endeavor Energy in $8 Bln Deal.NEWS7: European Shares Extend Losses On Growth Concerns.NEWS8: European Shares Extend Losses On Growth Concerns.NEWS9: FTSE 100 Down 50 Points As Oil Extends Losses.NEWS10: FTSE 100 Down 50 Points As Oil Extends Losses.NEWS11: CNOOC In Deals With 9 Oil Companies Incl. Chevron, ConocoPhillips, Shell, TOTAL.NEWS12: CNOOC In Deals With 9 Oil Companies Incl. Chevron, ConocoPhillips, Shell, TOTAL.NEWS13: Shell In Talks To Buy Endeavor Energy For About $8 Bln: Bloomberg Reports.NEWS14: Shell In Talks To Buy Endeavor Energy For About $8 Bln: Bloomberg Reports.
2018-12-19: NEWS1: Market Chatter: Oil Major Shell Expands Renewables Footprint With 49% Stake in Asia's Cleantech Solar.NEWS2: Market Chatter: Oil Major Shell Expands Renewables Footprint With 49% Stake in Asia's Cleantech Solar.

Answer: Decrease