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:2018-05-09, Stock:BHP, The news for the past five days is as follows:
2018-05-02: nan
2018-05-03: NEWS1: BP Said to Tap Morgan Stanley as It Weighs Buying BHP Assets.
2018-05-04: NEWS1: Freeport-McMoRan: Analyzing the Grasberg Concerns.NEWS2: Are There Any Bullish Triggers for Copper Prices?.NEWS3: [$$] Stocks to watch: HSBC, Virgin Money, BHP Billiton, IAG.
2018-05-07: NEWS1: Southern Copper Corporation (SCCO) Ex-Dividend Date Scheduled for May 08, 2018.NEWS2: Southern Copper Corporation (SCCO) Ex-Dividend Date Scheduled for May 08, 2018.NEWS3: 5 Reasons to Consider Freeport-McMoRan.NEWS4: Biggest Miner Says China's Shift to Quality Iron Ore Will Hold.
2018-05-08: nan

Answer: Rise