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:2020-01-31, Stock:RIO, The news for the past five days is as follows:
2020-01-24: NEWS1: How the Iron Ore Market Works (VALE, RIO).
2020-01-27: NEWS1: American Pacific Mining Signs Letter of Intent to Purchase Broadway Gold’s Interest in the Madison Cu-Au Project Under Option with Rio Tinto.
2020-01-28: NEWS1: GRAPHIC-Why the 'devil' coronavirus has hit European stocks hard.NEWS2: The Horse Breeder, the Novelist and the $60 Billion Mine.NEWS3: The Coronavirus Won’t Wreck the Commodities Market.
2020-01-29: NEWS1: The Big Dirty Secret of the World's Biggest Companies.NEWS2: RPT-GRAPHIC-Why the 'devil' coronavirus has hit European stocks hard.NEWS3: Rio Tinto’s Australian Supplier Portal.
2020-01-30: nan

Answer: Decrease