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:2021-01-21, Stock:BP, The news for the past five days is as follows:
2021-01-13: nan
2021-01-14: nan
2021-01-15: NEWS1: INEOS Quattro Finance 1 Plc -- Moody's assigns Ba2 to INEOS' senior secured notes and B2 to senior unsecured notes; outlook negative.
2021-01-19: nan
2021-01-20: NEWS1: INEOS Styrolution Group GmbH -- Moody's downgrades INEOS's secured debt to Ba3; CFR affirmed at Ba3.

Answer: Decrease