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:2018-08-06, Stock:VALE, The news for the past five days is as follows:
2018-07-30: nan
2018-07-31: NEWS1: Is VALE S.A. (VALE) Stock Undervalued Right Now?.
2018-08-01: NEWS1: 5 Stocks Trading Near 52-Week High With More Upside in Store.NEWS2: 5 Stocks Trading Near 52-Week High With More Upside in Store.NEWS3: After Hours Most Active for Aug 1, 2018 :  GE, MU, VALE, F, FOXA, QQQ, DAN, SBUX, BX, SYMC, MO, MSFT.NEWS4: After Hours Most Active for Aug 1, 2018 :  GE, MU, VALE, F, FOXA, QQQ, DAN, SBUX, BX, SYMC, MO, MSFT.NEWS5: 5 Stocks Trading Near 52-Week High With More Upside in Store.NEWS6: What To Expect From Rio Tinto's H1 2018 Results.NEWS7: What To Expect From Rio Tinto's H1 2018 Results.
2018-08-02: NEWS1: Zacks.com featured highlights include: Insight, ConocoPhillips, Vale, Alexion and Archer Daniels.NEWS2: Zacks.com featured highlights include: Insight, ConocoPhillips, Vale, Alexion and Archer Daniels.NEWS3: VALE S.A. (VALE) Ex-Dividend Date Scheduled for August 03, 2018.NEWS4: VALE S.A. (VALE) Ex-Dividend Date Scheduled for August 03, 2018.NEWS5: Zacks.com featured highlights include: Insight, ConocoPhillips, Vale, Alexion and Archer Daniels.
2018-08-03: nan

Answer: Decrease