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:2018-02-27, Stock:UNH, The news for the past five days is as follows:
2018-02-20: NEWS1: How Was Community Health Systems’ Financial Performance in 3Q17?.NEWS2: What Analysts Recommend for Community Health Systems.NEWS3: How Community Health Systems’ Segments Performed in 3Q17.NEWS4: iShares Russell 1000 Growth ETF Experiences Big Inflow.NEWS5: iShares Russell 1000 Growth ETF Experiences Big Inflow.NEWS6: Today’s Research Reports on Trending Tickers: UnitedHealth Group and Novartis.NEWS7: Report: Developing Opportunities within NewJersey Resources, Masimo, New Mountain Finance, Hess, Hologic, and UnitedHealth Group — Future Expectations, Projections Moving into 2018.
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).

Answer: Decrease