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:2021-04-27, Stock:RIO, The news for the past five days is as follows:
2021-04-20: NEWS1: IBD Screen Of The Day: Which Stocks Are Funds Buying In A Volatile Stock Market?.NEWS2: Iron Ore Giants Challenged in Race to Meet China Demand.NEWS3: Do Institutions Own Rio Tinto Group (LON:RIO) Shares?.
2021-04-21: NEWS1: IBD Screen Of The Day: 4 Top-Notch Global Leaders Near Buy Points.
2021-04-22: nan
2021-04-23: NEWS1: Is RIO Stock A Buy or Sell?.
2021-04-26: NEWS1: 5 Stocks to Watch as Copper Prices Hit Nine-Year High.NEWS2: Letter: Rio’s pledge on traditional land rights faces big test.

Answer: Decrease