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:2020-06-11, Stock:RIO, The news for the past five days is as follows:
2020-06-04: NEWS1: Iron-Ore Prices Surge on Impending Demand-Supply Imbalance.
2020-06-05: NEWS1: Traditional owners say Rio Tinto knew importance of caves razed for mine.
2020-06-08: NEWS1: Iron Ore Prices Surge as Vale Ordered to Shut Itabira Mines.
2020-06-09: nan
2020-06-10: nan

Answer: Decrease