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:2018-04-27, Stock:VALE, The news for the past five days is as follows:
2018-04-20: nan
2018-04-23: NEWS1: 4 Mining Stocks in Focus on Unpredictable Iron Ore Prices.NEWS2: 4 Mining Stocks in Focus on Unpredictable Iron Ore Prices.NEWS3: 4 Mining Stocks in Focus on Unpredictable Iron Ore Prices.NEWS4: Today’s Research Reports on Stocks to Watch: Cleveland-Cliffs and Vale S.A..NEWS5: BHP Gets More Time To Settle Brazil Mine Disaster Claim.NEWS6: BHP Gets More Time To Settle Brazil Mine Disaster Claim.
2018-04-24: NEWS1: The Zacks Analyst Blog Highlights: BHP, Golden Minerals, Glencore and VALE.NEWS2: The Zacks Analyst Blog Highlights: BHP, Golden Minerals, Glencore and VALE.NEWS3: The Zacks Analyst Blog Highlights: BHP, Golden Minerals, Glencore and VALE.NEWS4: 4 Mining Stocks in Focus on Unpredictable Iron Ore Prices.NEWS5: 4 Mining Stocks in Focus on Unpredictable Iron Ore Prices.
2018-04-25: NEWS1: Brazil's Vale 1st-qtr profit slumps by a third as costs rise.NEWS2: What To Expect From Vale’s Q1 Earnings.NEWS3: What To Expect From Vale’s Q1 Earnings.
2018-04-26: NEWS1: Vale S.A. (VALE) Q1 Earnings In Line, Revenues Miss Estimates.NEWS2: Vale S.A. (VALE) Q1 Earnings In Line, Revenues Miss Estimates.NEWS3: Vale S.A. (VALE) Q1 Earnings In Line, Revenues Miss Estimates.NEWS4: Vale S.A. Sponsored ADR to Host Earnings Call.NEWS5: Vale’s 1Q18 Earnings Miss on Lower Prices and Higher Costs.NEWS6: Vale S.A Q1 Profit Down, Despite Higher Sales.NEWS7: Vale S.A Q1 Profit Down, Despite Higher Sales.NEWS8: Brazil's Vale 1st-qtr profit slumps by a third on price slide.

Answer: Decrease