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:2018-02-28, Stock:UNH, The news for the past five days is as follows:
2018-02-21: nan
2018-02-22: NEWS1: Construction Begins for SEVEN04 PLACE, a New Community That Will Bring High-Quality, Affordable Housing to Milwaukee.NEWS2: UnitedHealth Group to Support Use of Bundled Payments with Health Care Providers in Fee-for-Service Medicare.NEWS3: Select Medical (SEM) Q4 Earnings Top Estimates, Keeps View.NEWS4: Select Medical (SEM) Q4 Earnings Top Estimates, Keeps View.
2018-02-23: NEWS1: Markets are slowly normalizing, but stocks could still sell off this afternoon.NEWS2: Urgent Care Industry Hits $18 Billion As Big Players Drive Growth.
2018-02-26: NEWS1: LifePoint Health (LPNT) Q4 Earnings Miss on Lower Revenues.NEWS2: LifePoint Health (LPNT) Q4 Earnings Miss on Lower Revenues.NEWS3: Warren Buffett explains why his cash stash just grew to $116 billion—stocks are overvalued.NEWS4: LifePoint Health (LPNT) Q4 Earnings Miss on Lower Revenues.NEWS5: AFLAC a Top Socially Responsible Dividend Stock With 2.3% Yield (AFL).NEWS6: AFLAC a Top Socially Responsible Dividend Stock With 2.3% Yield (AFL).
2018-02-27: NEWS1: Earnings Show That Time Is Running Out for Fitbit Inc.NEWS2: Earnings Show That Time Is Running Out for Fitbit Inc.NEWS3: Apple launches health clinics for employees.NEWS4: UnitedHealthcare Named Customer Service Department of the Year Winner.NEWS5: 5 Hot Stocks With Huge Revenue Drivers Ahead.NEWS6: 5 Hot Stocks With Huge Revenue Drivers Ahead.

Answer: Decrease