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:2021-10-21, Stock:VALE, The news for the past five days is as follows:
2021-10-14: nan
2021-10-15: nan
2021-10-18: NEWS1: Hedge Funds Aren’t Crazy About Vale SA (VALE) Anymore.
2021-10-19: NEWS1: UPDATE 1-Miner Vale to slow down iron ore production in Q4 due to low prices.NEWS2: Miner Vale to slow down iron ore production in Q4 due to low prices.NEWS3: Brazil superior court rejects Brumadinho indictments on procedural grounds.NEWS4: Vale May Offer Clues on What Direction Iron Ore Markets Are Heading.
2021-10-20: NEWS1: Nickel Surges to Highest in Seven Years as Supply Dwindles.NEWS2: Iron Rout Has Vale Cutting Back After Bumper Third Quarter.NEWS3: Vale's (VALE) Iron Ore Output Up 18% Sequentially in Q3.

Answer: Decrease