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:2018-12-27, Stock:BBL, The news for the past five days is as follows:
2018-12-19: NEWS1: Soft Start Called For Thai Stock Market.NEWS2: Soft Start Called For Thai Stock Market.
2018-12-20: NEWS1: Is BHP Billiton plc (BBL) Going to Burn These Hedge Funds?.
2018-12-21: nan
2018-12-24: nan
2018-12-26: NEWS1: Thai Stock Market May Extend Wednesday's Gains.NEWS2: Thai Stock Market May Extend Wednesday's Gains.

Answer: Decrease