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:2018-10-05, Stock:RIO, The news for the past five days is as follows:
2018-09-28: NEWS1: [$$] Rio Tinto in talks to sell Namibian uranium business.NEWS2: Freeport-McMoRan Reports Agreements For Inalum's Acquisition Of Shares In PT-FI.NEWS3: Freeport-McMoRan Reports Agreements For Inalum's Acquisition Of Shares In PT-FI.
2018-10-01: NEWS1: FTSE 100 Inches Higher On Brexit Hopes.NEWS2: FTSE 100 Inches Higher On Brexit Hopes.NEWS3: Asian Shares Mixed In Thin Holiday Trade.NEWS4: Asian Shares Mixed In Thin Holiday Trade.NEWS5: Rio Tinto, Japanese partners to invest $1.6 billion on Australian iron ore.NEWS6: Nippon Steel & Sumitomo Metal, Mitsui's JV With Rio Tinto To Invest In Australia.NEWS7: Nippon Steel & Sumitomo Metal, Mitsui's JV With Rio Tinto To Invest In Australia.
2018-10-02: NEWS1: Asian Markets Mostly Lower.NEWS2: Asian Markets Mostly Lower.NEWS3: Rio Tinto:well Placed To Benefit From Copper's Attractive Long-term Fundamentals.NEWS4: Rio Tinto:well Placed To Benefit From Copper's Attractive Long-term Fundamentals.NEWS5: Australian Market Modestly Higher.NEWS6: Australian Market Modestly Higher.NEWS7: Rio Is Hunting Deals, Discoveries for ‘Beautiful’ Diamonds Unit.NEWS8: How a Slowing Chinese Economy Mars Alcoa’s Outlook.NEWS9: Why Analysts Are Still Bullish on Alcoa Stock.NEWS10: BHP Billiton to Combat Headwinds With Lower Debt & Investment.NEWS11: BHP Billiton to Combat Headwinds With Lower Debt & Investment.NEWS12: BHP Billiton to Combat Headwinds With Lower Debt & Investment.NEWS13: No Respite for Alcoa as Stock Nears 52-Week Lows.NEWS14: Randgold's hook-up with Barrick to leave large void in London market.NEWS15: Why Rio Tinto plc (LON:RIO) Is A Dividend Rockstar.
2018-10-03: NEWS1: Asian Markets Mostly Lower.NEWS2: Asian Markets Mostly Lower.NEWS3: Australian Market Rises.NEWS4: Australian Market Rises.NEWS5: Royal Gold, Inc. (RGLD) Ex-Dividend Date Scheduled for October 04, 2018.NEWS6: Royal Gold, Inc. (RGLD) Ex-Dividend Date Scheduled for October 04, 2018.NEWS7: Asian Shares Mostly Lower As Italy Woes Weigh.NEWS8: Asian Shares Mostly Lower As Italy Woes Weigh.
2018-10-04: NEWS1: Asian Markets Lower, Australia Bucks Trend.NEWS2: Asian Markets Lower, Australia Bucks Trend.NEWS3: Australian Market Declines.NEWS4: Australian Market Declines.NEWS5: Asian Shares Fall On Rate Worries.NEWS6: Asian Shares Fall On Rate Worries.

Answer: Decrease