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:2018-03-21, Stock:VALE, The news for the past five days is as follows:
2018-03-14: NEWS1: Do Options Traders Know Something About Vale (VALE) Stock We Don't?.NEWS2: Do Options Traders Know Something About Vale (VALE) Stock We Don't?.NEWS3: Is Fear of a Global Trade War Making Doctor Copper Sick?.NEWS4: Is Fear of a Global Trade War Making Doctor Copper Sick?.NEWS5: Do Options Traders Know Something About Vale (VALE) Stock We Don&apos;t?.
2018-03-15: NEWS1: Noteworthy ETF Outflows: ILF, ITUB, VALE, BBD.NEWS2: Noteworthy ETF Outflows: ILF, ITUB, VALE, BBD.
2018-03-16: NEWS1: See How Century Aluminum Co. Ranks Among Analysts' Top Metals Picks.NEWS2: See How Century Aluminum Co. Ranks Among Analysts' Top Metals Picks.
2018-03-19: nan
2018-03-20: NEWS1: How Vale (VALE) Stock Stands Out in a Strong Industry.NEWS2: How Vale (VALE) Stock Stands Out in a Strong Industry.NEWS3: How Vale (VALE) Stock Stands Out in a Strong Industry.

Answer: Rise