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:2021-09-17, Stock:VALE, The news for the past five days is as follows:
2021-09-10: nan
2021-09-13: nan
2021-09-14: nan
2021-09-15: NEWS1: VALE S.A. (VALE) Stock Sinks As Market Gains: What You Should Know.NEWS2: EMERGING MARKETS-Chilean peso leads Latam FX higher after c.bank minutes.NEWS3: EMERGING MARKETS-Chilean peso cheers hawkish central bank minutes.NEWS4: UPDATE 1-Shares in Bradespar soar with distribution of about $1 bln in Vale stock.NEWS5: Miners Embracing Autonomous Trucks for a Carbon-Neutral Future.NEWS6: New Strong Sell Stocks for September 15th.NEWS7: Brazil's Bradespar to distribute about $1 bln in Vale stock to shareholders.
2021-09-16: nan

Answer: Decrease