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:2021-09-14, Stock:RIO, The news for the past five days is as follows:
2021-09-07: NEWS1: 3 Stocks to Keep an Eye on Despite Iron Ore Prices Losing Steam.
2021-09-08: NEWS1: New Strong Sell Stocks for September 8th.
2021-09-09: NEWS1: In Home of Malbec, Eyes Turn Toward Idled $5 Billion Potash Mine.NEWS2: Rio played down Australian heritage damage at inquiry - Aboriginal group.
2021-09-10: nan
2021-09-13: nan

Answer: Decrease