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:2018-05-07, Stock:BHP, The news for the past five days is as follows:
2018-04-30: NEWS1: Iron Ore Supply Stays High: Could Prices See More Pressure?.NEWS2: What’s Keeping Iron Ore Prices Buoyant.
2018-05-01: NEWS1: The War on Coal Is Making the World’s Top Mine Owners a Lot Richer.NEWS2: War on Coal Making the World's Top Mine Owners a Lot Richer.NEWS3: Should You Invest in the iShares Global Materials ETF (MXI)?.NEWS4: Should You Invest in the iShares Global Materials ETF (MXI)?.NEWS5: Could China’s Iron Ore Imports Level Off Soon?.NEWS6: Iron Ore Inventories Ease Slightly But Not Enough to Support Prices.
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.

Answer: Decrease