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:2021-12-15, Stock:VALE, The news for the past five days is as follows:
2021-12-08: nan
2021-12-09: nan
2021-12-10: nan
2021-12-13: NEWS1: Nucor to pay $400M to acquire majority stake in California steelmaker.NEWS2: 10 High Dividend Stocks with Over 12% Yield.NEWS3: Brazil's Vale sells stake in U.S. California Steel to Nucor.NEWS4: Hedge Fund Sentiment Is Stagnant On Vale SA (VALE).
2021-12-14: NEWS1: Vale (VALE) to Sell Stake in California Steel Industries for $400M.

Answer: Decrease