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:2018-07-23, Stock:RIO, The news for the past five days is as follows:
2018-07-16: NEWS1: World's Biggest Miners Want More Copper But Nobody's Selling.NEWS2: Rio Tinto Q2 Iron Ore Shipments Up 14%.NEWS3: Rio Tinto Q2 Iron Ore Shipments Up 14%.NEWS4: Freeport (FCX) Declares Terms of PT-FI Divestment & New Deal.NEWS5: Rio Says Workers Return at South Africa's Richards Bay Minerals.
2018-07-17: NEWS1: Guinea's mining minister says there will be Simandou deal, talks go on.NEWS2: [$$] Rio Tinto Ships More Iron Ore.NEWS3: Rio Tinto's Iron Ore Shipments Rise 14% in Second Quarter.NEWS4: Rio Tinto's Iron Ore Shipments Rise 14% in Second Quarter.NEWS5: [$$] Miners Test Greener Ways to Dig.
2018-07-18: NEWS1: Guinea's mining minister says there will be Simandou deal, talks go on.NEWS2: Validea David Dreman Strategy Daily Upgrade Report - 7/18/2018.NEWS3: Validea David Dreman Strategy Daily Upgrade Report - 7/18/2018.NEWS4: Freeport-McMoRan Reaches Agreement, But It’s Not What Investors Wanted.NEWS5: Freeport-McMoRan Reaches Agreement, But It’s Not What Investors Wanted.NEWS6: Freeport-McMoRan Reaches Agreement, But It’s Not What Investors Wanted.
2018-07-19: NEWS1: Will Miners’ Production Records Pressure Iron Ore Prices?.NEWS2: Is Freeport-McMoRan’s Agreement Binding?.NEWS3: UPDATE 1-Guinea's mining minister says there will be Simandou deal, talks go on.NEWS4: Analyzing How Freeport-McMoRan Fared in the Agreement.NEWS5: Freeport and Indonesia Take Baby Steps on Grasberg Impasse.NEWS6: Rio Tinto: Oyu Tolgoi In Deals With Three Chinese EPC Contractors.NEWS7: Rio Tinto: Oyu Tolgoi In Deals With Three Chinese EPC Contractors.NEWS8: Alcoa Cuts 2018 Profit Forecast.
2018-07-20: NEWS1: Has Iron Ore Port Inventory Started Weighing Down on Prices?.

Answer: Decrease