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:2020-06-15, Stock:RIO, The news for the past five days is as follows:
2020-06-08: NEWS1: Iron Ore Prices Surge as Vale Ordered to Shut Itabira Mines.
2020-06-09: nan
2020-06-10: nan
2020-06-11: NEWS1: New Strong Buy Stocks For June 11th.NEWS2: Australian state says BHP can disturb 40 sacred sites in mine expansion.NEWS3: Top Ranked Income Stocks to Buy for June 11th.
2020-06-12: nan

Answer: Decrease