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:2018-07-30, Stock:RIO, The news for the past five days is as follows:
2018-07-23: NEWS1: Wall Street’s Forecasts for Freeport’s Second-Quarter Results.NEWS2: Could Freeport’s Recent Sell-Off Signal an Opportunity?.NEWS3: Why Freeport Saw a Selling Spree Last Week.NEWS4: Analysts See 14% Upside For SLX.NEWS5: Analysts See 14% Upside For SLX.NEWS6: China’s Property Growth Is Cooling Off Again, Affecting Iron Ore.NEWS7: Alcoa: Analyzing the Selling Spree.NEWS8: Will Pollution Curbs Underpin China’s Steel Prices Going Forward?.NEWS9: Top 5 Copper Stocks for 2018.
2018-07-24: NEWS1: For China, Copper Comes Back Into Focus.NEWS2: Pre-Market Most Active for Jul 24, 2018 :  GE, QQQ, KB, FB, SQQQ, T, AKS, VZ, IQ, MU, RIO, TVIX.NEWS3: Pre-Market Most Active for Jul 24, 2018 :  GE, QQQ, KB, FB, SQQQ, T, AKS, VZ, IQ, MU, RIO, TVIX.NEWS4: Could Freeport Turn Things Around during Its Q2 Earnings Call?.NEWS5: How Is China’s Credit Growth Outlook?.
2018-07-25: NEWS1: Freeport profit jumps, miner flags market jitters over trade rows.NEWS2: Freeport-McMoRan’s Q2 2018 Beat: Don’t Celebrate Just Yet.NEWS3: COLUMN-Smelter hits halt global aluminium production growth: Andy Home.NEWS4: Today's Research Reports on Trending Tickers: Vale and Rio Tinto.NEWS5: Cleveland-Cliffs’s Cash Costs Were Higher in Q2, but No Worries.NEWS6: Mining shares drag FTSE lower, but ITV shines.
2018-07-26: NEWS1: Key Takeaways from Freeport-McMoRan’s Q2 2018 Earnings Call.NEWS2: How Q2 2018 Worked Out for Freeport-McMoRan.NEWS3: Mesabi Trust (MSB) Ex-Dividend Date Scheduled for July 27, 2018.NEWS4: Mesabi Trust (MSB) Ex-Dividend Date Scheduled for July 27, 2018.NEWS5: COLUMN-Smelter hits halt global aluminium production growth: Andy Home.
2018-07-27: NEWS1: Why Analysts Have a Positive View of BHP after the BHP–BP Deal.NEWS2: BP pays $10.5 bln for BHP shale assets to beef up U.S. business.

Answer: Decrease