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:2020-02-07, Stock:UNH, The news for the past five days is as follows:
2020-01-31: nan
2020-02-03: NEWS1: Dow Jones Today: A Coronavirus Rebound in the U.S., But Not China.
2020-02-04: NEWS1: Dow Jones Today: Coronavirus, Caucus Uncertainties and Stocks Don’t Care.NEWS2: Politics Could Again Pinch This Healthcare ETF.NEWS3: UnitedHealth, Nike share gains lead Dow's 400-point rally.
2020-02-05: NEWS1: U.S. government proposes higher payments to Medicare insurers in 2021.NEWS2: UnitedHealth, IBM share gains lead Dow's 425-point rally.NEWS3: Dow Jones Nears All-Time High As IBM Soars; UnitedHealth Gives Bullish Buy Signal.NEWS4: Dow Surges 350 Points On Bullish Jobs Data, As Coronavirus Cases Top 24,000.NEWS5: UnitedHealth, IBM share gains contribute to Dow's 350-point rally.NEWS6: UnitedHealth Stock Rises 4%.NEWS7: UnitedHealth, Caterpillar share gains lead Dow's 275-point climb.
2020-02-06: NEWS1: Cigna (CI) Q4 Earnings and Revenues Beat Estimates, Rise Y/Y.NEWS2: US Indexes Close Higher With Impeachment Acquittal.

Answer: Decrease