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:2019-05-31, Stock:VALE, The news for the past five days is as follows:
2019-05-23: NEWS1: Thursday's ETF with Unusual Volume: GNR.NEWS2: Thursday's ETF with Unusual Volume: GNR.
2019-05-24: NEWS1: Vale Analyst Upgrades Mining Operator, Says Worst Is Behind It.NEWS2: Anger mounts at Vale in Brazil town at risk for new dam burst.NEWS3: Top 5 Steel Stocks of 2019.
2019-05-28: NEWS1: Could Chinese Iron Ore Inventories Keep Supporting Prices?.NEWS2: Tuesday's ETF Movers: ILF, XOP.NEWS3: Tuesday's ETF Movers: ILF, XOP.NEWS4: Record China Steel Production Supports Iron Ore despite Trade War.NEWS5: Why Iron Ore Prices Are Bucking the Downtrend in Metals Prices.NEWS6: Brazil's Vale says risk of dam break at Gongo Soco mine has diminished.
2019-05-29: NEWS1: Ken Heebner's CGM Goes 3 for 3 in 1st Quarter.
2019-05-30: NEWS1: ILF, ITUB, VALE, BBD: ETF Outflow Alert.NEWS2: ILF, ITUB, VALE, BBD: ETF Outflow Alert.NEWS3: This Precious Metals Company's Gold Sales Just Hit Record Highs.NEWS4: This Precious Metals Company's Gold Sales Just Hit Record Highs.

Answer: Decrease