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:2018-01-23, Stock:VALE, The news for the past five days is as follows:
2018-01-16: NEWS1: Why Did JPMorgan Recently Downgrade Rio Tinto?.NEWS2: Vale Poised to Gain From Iron-Ore Price Rise Amid Headwinds.NEWS3: Vale Poised to Gain From Iron-Ore Price Rise Amid Headwinds.NEWS4: A Look at Recent Upgrades and Downgrades for BHP Billiton.NEWS5: Vale Poised to Gain From Iron-Ore Price Rise Amid Headwinds.
2018-01-17: NEWS1: These Factors Are Affecting Vale SA’s Earnings Estimates.NEWS2: What to Expect from Cleveland-Cliffs’ Asia-Pacific Segment.NEWS3: Why Analysts’ Optimism for Vale SA Has Increased in Recent Months.NEWS4: Pre-Market Most Active for Jan 17, 2018 :  NRZ, UL, JUNO, BAC, GE, F, TVIX, QQQ, VALE, AAPL, ACWI, MU.NEWS5: Pre-Market Most Active for Jan 17, 2018 :  NRZ, UL, JUNO, BAC, GE, F, TVIX, QQQ, VALE, AAPL, ACWI, MU.NEWS6: Vale could be a 'natural' owner for Samarco; in talks with BHP -director.NEWS7: Why Analysts Expect a Strong Pickup in Rio Tinto’s Margins.
2018-01-18: NEWS1: BHP Billiton's (BHP) Iron-Ore Output Flat Y/Y in 1H FY18.NEWS2: BHP Billiton's (BHP) Iron-Ore Output Flat Y/Y in 1H FY18.NEWS3: Look Out for These Valuation Catalysts for Iron Ore in 2018.NEWS4: BHP Billiton&apos;s (BHP) Iron-Ore Output Flat Y/Y in 1H FY18.NEWS5: Is the Pullback in Iron Ore Miners Based on Technical Indicators?.NEWS6: How Analysts View Cleveland-Cliffs’ Earnings for 2017 and Beyond.
2018-01-19: NEWS1: What Technical Indicators Say about Cliffs and Peers.NEWS2: These Factors Could Lead to Upside to CLF’s Free Cash Flow.
2018-01-22: nan

Answer: Decrease