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:2021-04-22, Stock:BP, The news for the past five days is as follows:
2021-04-15: NEWS1: BP Unearths Oil at Puma West Prospect in Offshore Louisiana.
2021-04-16: NEWS1: Eastern Canadian Oil Heads to U.S. West Coast in Unusual Demand Shift.NEWS2: Clean Energy (CLNE) Enters an Accord With BP Affiliate.
2021-04-19: nan
2021-04-20: NEWS1: Oil & Gas Stock Roundup: BP's Oil Find, Chevron's Offshore Wind Foray & More.
2021-04-21: NEWS1: BP (BP) Gains But Lags Market: What You Should Know.NEWS2: BP to Lower Routine Gas Flaring From US Onshore Operations.

Answer: Decrease