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:2018-07-17, Stock:RIO, The news for the past five days is as follows:
2018-07-10: NEWS1: Analysts Embrace First Quantum despite Falling Copper Prices.
2018-07-11: NEWS1: Indonesia and Freeport Set to End Grasberg Wrangling With Accord.NEWS2: Freeport Is Poised to Sign Grasberg Accord in Indonesia.NEWS3: Caledonia Mining Corporation Plc (CMCL) Ex-Dividend Date Scheduled for July 12, 2018.NEWS4: Caledonia Mining Corporation Plc (CMCL) Ex-Dividend Date Scheduled for July 12, 2018.NEWS5: Rio Tinto's minerals sands operation in South Africa shut by protests.
2018-07-12: NEWS1: Freeport to cede control of Indonesian copper mine in $3.9 bln deal.NEWS2: The Markets Aren’t Excited about Freeport’s Grasberg Resolution.NEWS3: Indonesia to pay $3.85 billion for majority stake in Freeport's Grasberg copper mine.NEWS4: Rio Tinto sells $3.5 billion stake in Grasberg copper mine to Indonesian state miner.NEWS5: [$$] Rio Tinto sells Grasberg stake for $3.5bn.NEWS6: [$$] Rio sells Grasberg interest for $3.5bn.NEWS7: Rio Tinto, Freeport-McMoRan stock rally after Rio Tinto sells copper mine interests for $3.5 billion to Inalum.NEWS8: Rio Tinto To Sell Its Interest In Grasberg Mine In Indonesia - Quick Facts.NEWS9: Rio Tinto To Sell Its Interest In Grasberg Mine In Indonesia - Quick Facts.NEWS10: Freeport Unveils Indonesia Price But Plenty Left to Resolve.NEWS11: Freeport's Indonesia Deal Leaves Key Questions Unanswered.NEWS12: Freeport Cedes Grasberg to Indonesia in $3.9 Billion Deal.NEWS13: Freeport Cedes Grasberg Control to Indonesia in $3.85B Deal.NEWS14: Indonesia Reaches Preliminary Deal With Freeport on Grasberg.NEWS15: Rio Tinto CEO: High expectations that 2018 tender will be....NEWS16: [$$] Rio Tinto Confident Trade Jolts Won't Rub Shine Off Rare Diamonds.
2018-07-13: NEWS1: What Freeport, Rio Tinto, and Indonesia Get from Grasberg Deal.NEWS2: Q&A-What's left to resolve in Indonesia's $3.9 billion mine deal with Freeport?.NEWS3: Robot Trains Are Slashing Mining Costs in Australia's Outback.NEWS4: Focus: Survival of the finest: miners reboot as smog-hit China seeks high grade ore.NEWS5: When Rio Tinto Met China’s Iron Hand.NEWS6: [$$] Indonesia Moves Closer to Taking Controlling Stake in Freeport Mine.
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.

Answer: Rise