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:2018-12-20, Stock:BHP, The news for the past five days is as follows:
2018-12-13: NEWS1: Need To Know: BHP Group Limited (ASX:BHP) Insiders Have Been Buying Shares.NEWS2: Will Chinese Steel Mills’ Pains Intensify with the Trade War?.NEWS3: Why China’s Steel Production Can’t Buck the Downtrend for Long.
2018-12-14: NEWS1: Why China Needs More Than a Trade War Truce to Buck the Slowdown.
2018-12-17: NEWS1: Asian Markets In Negative Territory.NEWS2: Asian Markets In Negative Territory.NEWS3: Australian Market Notably Lower.NEWS4: Australian Market Notably Lower.NEWS5: Pre-Market Most Active for Dec 17, 2018 :  TAL, PTI, AMD, QQQ, LYG, NOK, SQQQ, BHP, VOD, TVIX, CHK, SNY.NEWS6: Pre-Market Most Active for Dec 17, 2018 :  TAL, PTI, AMD, QQQ, LYG, NOK, SQQQ, BHP, VOD, TVIX, CHK, SNY.NEWS7: European Markets Pulled Back As Retailers Sank.NEWS8: European Markets Pulled Back As Retailers Sank.NEWS9: Here is What Hedge Funds Think About BHP Group Limited (BHP).NEWS10: A Looming Spike In Inflation Is Bad News For Stocks.
2018-12-18: NEWS1: Asian Markets Mostly Higher Ahead Of Fed Decision.NEWS2: Asian Markets Mostly Higher Ahead Of Fed Decision.NEWS3: Australian Market Extends Losses.NEWS4: Australian Market Extends Losses.NEWS5: Pre-Market Most Active for Dec 18, 2018 :  RCII, AEG, FLEX, SQQQ, NVS, AMD, QQQ, GE, UL, CFG, BHP, TQQQ.NEWS6: Pre-Market Most Active for Dec 18, 2018 :  RCII, AEG, FLEX, SQQQ, NVS, AMD, QQQ, GE, UL, CFG, BHP, TQQQ.
2018-12-19: NEWS1: Asian Markets Mostly Lower After Fed Raises Rates.NEWS2: Asian Markets Mostly Lower After Fed Raises Rates.NEWS3: Australian Market Pares Losses.NEWS4: Australian Market Pares Losses.NEWS5: Copper Throws Mixed Signals for Markets.NEWS6: Mining Stocks Look Dead unless China Stabilizes.NEWS7: Is Freeport-McMoRan Worth a Look Now?.NEWS8: Report : BP May Sell $3 Bln In U.S. Assets.NEWS9: Report : BP May Sell $3 Bln In U.S. Assets.

Answer: Decrease