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:2019-04-29, Stock:UNH, The news for the past five days is as follows:
2019-04-22: NEWS1: Stocks Close Mixed; Oil, Boeing in Focus.NEWS2: Stocks Close Mixed; Oil, Boeing in Focus.NEWS3: Market Close Report: NASDAQ Composite Index closes above 8000; up 17.21 points at 8,015.27.NEWS4: Market Close Report: NASDAQ Composite Index closes above 8000; up 17.21 points at 8,015.27.NEWS5: UnitedHealthcare Focuses on Connecting Eligible Hawaii Medicare and Medicaid Recipients with Vital Social Services.NEWS6: Noteworthy Monday Option Activity: WHR, ULTA, UNH.NEWS7: Noteworthy Monday Option Activity: WHR, ULTA, UNH.NEWS8: The 5 Highest-Rated Dow Jones Stocks.NEWS9: Buy Abbott on the pullback? Own Visa or Mastercard? #AskHalftime.NEWS10: Dow Movers: NKE, XOM.NEWS11: Dow Movers: NKE, XOM.NEWS12: DIA, BA, UNH, MMM: ETF Inflow Alert.NEWS13: DIA, BA, UNH, MMM: ETF Inflow Alert.NEWS14: UnitedHealth CEO's pay passed $18 million in 2018; Optum chief got $21 million in his first year.NEWS15: Don't Blame Politicians for the UnitedHealth Sell-Off.NEWS16: As Earnings Season Rolls On, Many Companies Have Beaten Expectations.NEWS17: 3 Solid Stocks for a Strong Portfolio.
2019-04-23: NEWS1: Why Is Bristol-Myers Near 52-Week Lows?.NEWS2: Why Is Bristol-Myers Near 52-Week Lows?.NEWS3: The Zacks Analyst Blog Highlights: Wells Fargo, UnitedHealth, Merck, Schwab and Raytheon.NEWS4: The Zacks Analyst Blog Highlights: Wells Fargo, UnitedHealth, Merck, Schwab and Raytheon.NEWS5: Why Is Bristol-Myers Near 52-Week Lows?.NEWS6: The Zacks Analyst Blog Highlights: Wells Fargo, UnitedHealth, Merck, Schwab and Raytheon.
2019-04-24: NEWS1: 5 Biotech Stocks Defying the Medicare-for-All Scare.NEWS2: 5 Biotech Stocks Defying the Medicare-for-All Scare.NEWS3: Son Creates Stock-Buying Startup After Mom Misses Million Dollar Opportunity.NEWS4: 5 Biotech Stocks Defying the Medicare-for-All Scare.
2019-04-25: NEWS1: Smile Direct Club and UnitedHealthcare Help People Improve Their Smiles and Save Money.
2019-04-26: NEWS1: Amazon Pushes Nasdaq to Fifth Straight Weekly Win.NEWS2: Amazon Pushes Nasdaq to Fifth Straight Weekly Win.NEWS3: Market Close Report: Historical high reached as NASDAQ Composite Index closes at 8,146.40..NEWS4: Market Close Report: Historical high reached as NASDAQ Composite Index closes at 8,146.40..NEWS5: Dow Movers: INTC, PG.NEWS6: Dow Movers: INTC, PG.NEWS7: Why Principal Financial Group is a Top Socially Responsible Dividend Stock (PFG).NEWS8: Why Principal Financial Group is a Top Socially Responsible Dividend Stock (PFG).NEWS9: Did You Miss UnitedHealth Group's (NYSE:UNH) Impressive 208% Share Price Gain?.

Answer: Rise