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:2019-05-01, Stock:RDS-B, The news for the past five days is as follows:
2019-04-24: NEWS1: Royal Dutch Shell Unveils 'Significant' Discovery in Gulf Of Mexico.NEWS2: Royal Dutch Shell Unveils 'Significant' Discovery in Gulf Of Mexico.NEWS3: Market Chatter: Shell Reportedly In Talks to Buy BP's Stake in the North Sea Gas Field for $250 Mln.NEWS4: Market Chatter: Shell Reportedly In Talks to Buy BP's Stake in the North Sea Gas Field for $250 Mln.
2019-04-25: nan
2019-04-26: NEWS1: Energy Sector Update for 04/26/2019: BHGE, XOM, CVX, RDS.A, RDS.B, BP, E, COP, TOT, PBR, PBR.A, EC, SLB, HAL, NOV, SPN.NEWS2: Energy Sector Update for 04/26/2019: BHGE, XOM, CVX, RDS.A, RDS.B, BP, E, COP, TOT, PBR, PBR.A, EC, SLB, HAL, NOV, SPN.
2019-04-29: nan
2019-04-30: nan

Answer: Decrease