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:2021-08-05, Stock:RIO, The news for the past five days is as follows:
2021-07-29: NEWS1: UPDATE 2-Miner Turquoise Hill's profit beats on strong output, metal prices.NEWS2: Ancient Sites, Sacred Snake Raise Risks for Australian Resources.NEWS3: Is Rio Tinto (RIO) Stock Undervalued Right Now?.NEWS4: Gupta Pays $25 Million to End Long-Running Spat With Rio Tinto.NEWS5: £7bn boost as FTSE firms shower investors with dividends and buybacks.NEWS6: Anglo American's profit soars 1,000% thanks to China and battery demand.
2021-07-30: NEWS1: Oil Bulls Remain Confident Despite Covid Concerns.NEWS2: Turquoise Hill Resources Ltd (TRQ) Q2 2021 Earnings Call Transcript.
2021-08-02: NEWS1: Rio Tinto (RIO) Upgraded to Strong Buy: Here's What You Should Know.NEWS2: Rio Tinto and Komatsu partnering for zero-emission mining.
2021-08-03: NEWS1: Is Rio Tinto (RIO) Outperforming Other Basic Materials Stocks This Year?.
2021-08-04: nan

Answer: Decrease