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:2021-04-28, Stock:BBL, The news for the past five days is as follows:
2021-04-21: NEWS1: Has BHP Billiton (BBL) Outpaced Other Basic Materials Stocks This Year?.
2021-04-22: NEWS1: BHP (BHP) Crossed Above the 50-Day Moving Average: What That Means for Investors.
2021-04-23: nan
2021-04-26: NEWS1: BHP (BHP) Just Overtook the 50-Day Moving Average.NEWS2: Billiton (BBL) Just Overtook the 50-Day Moving Average.NEWS3: 5 Stocks to Watch as Copper Prices Hit Nine-Year High.
2021-04-27: nan

Answer: Rise