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:2018-05-29, Stock:VALE, The news for the past five days is as follows:
2018-05-21: NEWS1: Should Vale SA. (NYSE:VALE) Be Part Of Your Portfolio?.NEWS2: Brazil’s Biggest Pension Fund Turns Into a $50 Billion Activist.
2018-05-22: NEWS1: Cobalt Streaming Deal Could Be the First in a Flood.NEWS2: An International Energy Bonanza.
2018-05-23: NEWS1: BHP Billiton Braves Iron-Ore Price Slump on Robust Yield.NEWS2: BHP Billiton Braves Iron-Ore Price Slump on Robust Yield.NEWS3: Which Mining Company Is the Best Dividend Stock?.NEWS4: Which Mining Company Is the Best Dividend Stock?.NEWS5: Which Mining Company Is the Best Dividend Stock?.
2018-05-24: NEWS1: Will Vale’s Strategy of Preserving Optionality in Nickel Work?.NEWS2: Why Vale’s Coal Division Is Becoming More Profitable.NEWS3: Why Vale’s Iron Ore Margins Should Remain Supported.
2018-05-25: NEWS1: Will Vale’s New Dividend Policy Be a Winner?.NEWS2: Vale’s Net Debt Position Improves, Excess Cash Going to Dividends.

Answer: Decrease