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:2020-01-23, Stock:RIO, The news for the past five days is as follows:
2020-01-15: NEWS1: Should We Be Delighted With Rio Tinto Group's (LON:RIO) ROE Of 28%?.
2020-01-16: NEWS1: Rio Tinto Releases Fourth Quarter Production Results.NEWS2: Iron ore outlook rests on Vale’s tricky rebound.
2020-01-17: NEWS1: Baltic index dips on subdued demand for capesize vessels.NEWS2: Premarket London: Rio Tinto Production Slips; Premier Foods Posts Sweet Q3 Numbers.
2020-01-21: NEWS1: Resilient Chinese Steel Industry Holds Promise for Iron Ore.NEWS2: The Iron Ore Party Is Drawing to a Close.
2020-01-22: nan

Answer: Decrease