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:2018-08-06, Stock:RIO, The news for the past five days is as follows:
2018-07-30: nan
2018-07-31: NEWS1: Rio Tinto May Report Strongest Interim Profit Since 2014.NEWS2: Rio Tinto May Report Strongest Interim Profit Since 2014.NEWS3: COLUMN-BHP, Rio deals show lack of options beyond shareholder returns: Russell.NEWS4: COLUMN-BHP, Rio deals show lack of options beyond shareholder returns: Russell.NEWS5: [$$] New TRQ CEO gets cautious welcome from shareholder.
2018-08-01: NEWS1: [$$] Rio Tinto to Buy Back Shares After First-Half Profit Jumps.NEWS2: What's next for mining giant Rio Tinto?.NEWS3: Edited Transcript of RIO.L earnings conference call or presentation 1-Aug-18 9:00am GMT.NEWS4: European shares dip as mixed earnings fail to dispel trade fears.NEWS5: Rio Tinto CEO Remains Positive on China Outlook.NEWS6: What To Expect From Rio Tinto's H1 2018 Results.NEWS7: What To Expect From Rio Tinto's H1 2018 Results.NEWS8: Rio Tinto boss sees no impact yet from Donald Trump&apos;s trade war on China.NEWS9: Rio Tinto falls as profit miss highlights cost concerns.NEWS10: Rio Tinto plc to Host Earnings Call.NEWS11: Stocks making the biggest moves premarket: AAPL, P, CAKE, CPB, AMC & more.NEWS12: UPDATE 1-European shares dip as mixed earnings fail to dispel trade fears.NEWS13: [$$] Rio Tinto's Cost Warning for Global Miners.NEWS14: Rio Tinto shares sink after first-half profit miss; adds $1 billion to share buyback.NEWS15: Why Shareholders Aren’t Loving Rio Tinto’s Cash Machine.NEWS16: Rio Tinto CEO: Absolutely delighted with strong set of re....NEWS17: [$$] Rio Tinto announces $7bn cash return bonanza.NEWS18: [$$] Rio Tinto announces $7.2bn cash return bonanza.NEWS19: UK Stocks-Factors to watch on Aug. 1.NEWS20: Rio's $7 Billion Windfall Points to Mining's Lesson Learned.NEWS21: Rio CEO Aims to Boost Returns Further After $7 Billion Windfall.NEWS22: Rio Returns $7 Billion to Investors on Asset Sales, Profit Boost.NEWS23: Mining giant Rio Tinto sees first-half profit rise and plans additional $1 billion share buyback.NEWS24: Rio Tinto H1 Underlying EBITDA Up; Sees FY Pilbara Shipment At Upperend Of Range.NEWS25: Rio Tinto H1 Underlying EBITDA Up; Sees FY Pilbara Shipment At Upperend Of Range.NEWS26: [$$] Rio cost warning knocks mining sector.
2018-08-02: NEWS1: VALE S.A. (VALE) Ex-Dividend Date Scheduled for August 03, 2018.NEWS2: VALE S.A. (VALE) Ex-Dividend Date Scheduled for August 03, 2018.NEWS3: Rio Tinto's Profit to Remain Pressured by Costs, Analysts Say.NEWS4: A 'weaker second half' awaits mining giant Rio Tinto: Exp....NEWS5: Rio Tinto is 'cutting to the bone,' expert says.
2018-08-03: NEWS1: Rising oil prices threaten to erode mining sector's profitability.

Answer: Decrease