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:2021-12-22, Stock:BHP, The news for the past five days is as follows:
2021-12-15: NEWS1: UPDATE 2-Australia regulator approves Woodside merger with BHP's petroleum arm.NEWS2: VIP Growth and Income Portfolio Buys Universal Music Group NV, Vertiv Holdings Co, Tourmaline ....NEWS3: Woodside Finance Limited -- Moody's affirms Woodside's Baa1 ratings; outlook remains negative.
2021-12-16: NEWS1: BHP Group (BHP) Petroleum Arm-Woodside Merger Gets ACCC Nod.NEWS2: 10 Dividend Stocks with over 11% Yield.
2021-12-17: NEWS1: Fidelity Hastings Street Trust Buys Universal Music Group NV, SAP SE, Glencore PLC, Sells BHP ....
2021-12-20: nan
2021-12-21: NEWS1: Fight for Canadian Nickel Miner Appears Over as BHP Bows Out.NEWS2: UPDATE 2-Wyloo to buy nickel miner Noront after BHP drops off from race.NEWS3: Wyloo to buy nickel miner Noront after BHP drops off from race.NEWS4: Canada's Noront goes with Wyloo's offer, gives BHP five days to match.NEWS5: American Century Capital Portfolios Inc Buys iShares Russell 1000 Growth ETF, Teradyne Inc, ....NEWS6: UPDATE 1-Australia's BHP gets regulatory approvals to unify its corporate structure.

Answer: Decrease