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:2018-12-04, Stock:RDS-B, The news for the past five days is as follows:
2018-11-27: nan
2018-11-28: NEWS1: Market Chatter: Greek State-Controlled DEPA Acquires Shell's Stake in Domestic Gas Supplier, Distributor.NEWS2: Market Chatter: Greek State-Controlled DEPA Acquires Shell's Stake in Domestic Gas Supplier, Distributor.
2018-11-29: nan
2018-11-30: NEWS1: Shell Finalizes Sale of Draugen and Gj&#248;a Interests to OKEA.NEWS2: Shell Finalizes Sale of Draugen and Gj&#248;a Interests to OKEA.
2018-12-03: NEWS1: Royal Dutch Shell Buys Back $30 Mln Shares for Cancellation on Monday.NEWS2: Royal Dutch Shell Buys Back $30 Mln Shares for Cancellation on Monday.

Answer: Decrease