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:2018-01-11, Stock:UNH, The news for the past five days is as follows:
2018-01-04: NEWS1: Dow 25,000: Chalk It Up to These 4 Stocks.NEWS2: How the Dow got to 25K.NEWS3: 4 Health Care Stocks Prescribed As Buys By Goldman Sachs.NEWS4: Healthcare Stocks: Year In Review; Your Growth Prescriptions For 2018.
2018-01-05: NEWS1: Top Research Reports for Microsoft, Intel & UnitedHealth.NEWS2: Consumer Sector Update for 01/05/2018: STZ,DPLO,OLLI,BKS.NEWS3: Top Research Reports for Microsoft, Intel & UnitedHealth.NEWS4: Consumer Sector Update for 01/05/2018: DPLO,OLLI,BKS.NEWS5: Noteworthy ETF Outflows: IWB, GOOGL, UNH, CSCO.NEWS6: Dow Movers: DIS, CSCO.NEWS7: Humana Sees Relative Strength Rating Improve To 71.NEWS8: Quest Diagnostics Incorporated (DGX) Ex-Dividend Date Scheduled for January 08, 2018.NEWS9: These 5 stocks could fuel market to new highs.NEWS10: Trade of the Day: UnitedHealth Group Is Waving Down the Bulls.
2018-01-08: NEWS1: Stocks Close Mixed; How Oprah Caused A Stock To Break Out.NEWS2: Dow Ends Lower; S&P, Nasdaq Still Perfect in 2018.NEWS3: Market Close Report: Historical high reached as NASDAQ Composite Index closes at 7,157.39..NEWS4: Dow Analyst Moves: UNH.NEWS5: The Zacks Analyst Blog Highlights: Microsoft, Intel, UnitedHealth, Mondelez and Deere.NEWS6: Boeing, UnitedHealth stocks contribute nearly half Dow's early slide.NEWS7: The Zacks Analyst Blog Highlights: Microsoft, Intel, UnitedHealth, Mondelez and Deere.NEWS8: Top 3 Healthcare Stocks for 2018.NEWS9: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..NEWS10: Five 2017 Stock Winners Have Carved Bases For New Runs: S&P 500 Futures.NEWS11: Five 2017 Stock Winners Have Carved Bases For New Runs: S&P 500 Futures.
2018-01-09: NEWS1: 7 Best Healthcare ETFs for 2018.NEWS2: UnitedHealthcare Vision Plans Rank Highest in Customer Satisfaction in J.D. Power Study.NEWS3: Aetna Inc. (AET) Ex-Dividend Date Scheduled for January 10, 2018.
2018-01-10: NEWS1: Stocks Cut Losses, Bitcoin ETF Down Again; Will Apple Break Out?.NEWS2: Stocks Cut Losses, Bitcoin ETF Down Again; Will Apple Break Out?.NEWS3: Humana Extends Contract With Tivity Health, Spurs Healthcare.NEWS4: Stocks With Rising Relative Strength: Humana.NEWS5: UnitedHealthcare and Dexcom Bring Wearable Technology Solution, One-on-One Coaching to People Battling Type 2 Diabetes.NEWS6: Humana Extends Contract With Tivity Health, Spurs Healthcare.NEWS7: Patterson Companies, Inc. (PDCO) Ex-Dividend Date Scheduled for January 11, 2018.NEWS8: UnitedHealth Taps Into Emerging Mobile Diabetes Management.

Answer: Rise