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:2020-08-25, Stock:RIO, The news for the past five days is as follows:
2020-08-18: NEWS1: Rio Tinto: Update on refined copper guidance.NEWS2: Rio Tinto cuts 2020 refined copper outlook citing troubles in Utah mine.NEWS3: Aboriginal group says miners' use of gag clauses needs review.
2020-08-19: nan
2020-08-20: nan
2020-08-21: nan
2020-08-24: NEWS1: U.K. stocks rise as BT moves to fight off takeover threat and oil giants BP and Shell gain.NEWS2: Is Rio Tinto (RIO) Outperforming Other Basic Materials Stocks This Year?.NEWS3: Tiger Cub Impala Asset Management’s Top Stock Picks.NEWS4: Rio Tinto bosses lose bonuses over Aboriginal cave destruction.NEWS5: The Stock Market Is Getting Its Own Plasma Infusion.NEWS6: Top Rio Tinto Executives Lose Bonuses After Aboriginal Site Blasts.NEWS7: Rio Tinto stops short of axing leaders over sacred caves blast.NEWS8: Storebrand divests out of Exxon, others over climate lobbying.

Answer: Decrease