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:2018-11-20, Stock:VALE, The news for the past five days is as follows:
2018-11-13: NEWS1: Why Iron Ore Stocks Could Struggle to Hold Ground.
2018-11-14: NEWS1: Vale-BHP Brazil joint venture Samarco names mining executive as new CFO.NEWS2: Vale-BHP Brazil joint venture Samarco names mining exec as new CFO.
2018-11-15: nan
2018-11-16: nan
2018-11-19: NEWS1: Noteworthy ETF Outflows: ILF, VALE, ITUB, BBD.NEWS2: Noteworthy ETF Outflows: ILF, VALE, ITUB, BBD.NEWS3: China’s Housing Indicators Show a Continued Slowdown.NEWS4: Is There More Heat Left in Freeport-McMoRan’s Rally?.NEWS5: Brazil court orders Vale to pay damages to indigenous tribes.

Answer: Decrease