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:2019-06-19, Stock:BHP, The news for the past five days is as follows:
2019-06-12: NEWS1: Vale’s Woes Keep Mounting.
2019-06-13: NEWS1: Iron Ore, Gold Surge Propel S. Africa Miners to 11-Year High.NEWS2: Vale’s Woes Keep Mounting.NEWS3: Vale’s Woes Keep Mounting.
2019-06-14: NEWS1: Supply or Demand: What Will Weigh on Iron Ore Prices More?.NEWS2: BHP (BHP) Moves to Buy: Rationale Behind the Upgrade.NEWS3: BHP (BHP) Moves to Buy: Rationale Behind the Upgrade.NEWS4: BHP (BHP) Moves to Buy: Rationale Behind the Upgrade.
2019-06-17: nan
2019-06-18: NEWS1: Iron Ore Prices Surge to 5-Year High on Supply Crunch Fears.NEWS2: Iron Ore Prices Surge to 5-Year High on Supply Crunch Fears.NEWS3: Iron Ore Prices Surge to 5-Year High on Supply Crunch Fears.

Answer: Decrease