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:2018-02-09, Stock:BHP, The news for the past five days is as follows:
2018-02-02: NEWS1: Rebel Union Push Snarls Relations at World's Biggest Copper Mine.NEWS2: Should BHP Billiton Limited (ASX:BHP) Be Part Of Your Dividend Portfolio?.
2018-02-05: NEWS1: Is BHP Billiton plc’s (LON:BLT) PE Ratio A Signal To Sell For Investors?.NEWS2: BHP Urged to Review Its Dual HQ Structure.NEWS3: Elliott Management Urges BHP To Immediately Review Dual Structure.NEWS4: Elliott Management Urges BHP To Immediately Review Dual Structure.
2018-02-06: nan
2018-02-07: NEWS1: 2 Top Iron Stocks to Consider Buying Now.NEWS2: 2 Top Iron Stocks to Consider Buying Now.NEWS3: 2 Top Iron Stocks to Consider Buying Now.
2018-02-08: NEWS1: Top 5 Copper Stocks for 2018.

Answer: Rise