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:2021-10-01, Stock:RIO, The news for the past five days is as follows:
2021-09-24: NEWS1: September Sell-Off: How to Navigate the Market.NEWS2: Fine Dining, Luxe Living Lure Workers to World’s Remotest Mines.
2021-09-27: nan
2021-09-28: NEWS1: 10 Best International Stocks in 2021.
2021-09-29: NEWS1: Rio Tinto publishes first Communities and Social Performance report.NEWS2: UPDATE 1-In Arizona, Rio Tinto CEO seeks 'win-win' for Resolution copper project.
2021-09-30: NEWS1: Rio Tinto declares force majeure on some copper cathode contracts, Kennecott smelter shut.

Answer: Decrease