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:2018-11-30, Stock:UNH, The news for the past five days is as follows:
2018-11-23: nan
2018-11-26: NEWS1: UnitedHealth Group to Discuss Business Outlook at Investor Conference.NEWS2: One Put, One Call Option To Know About for UnitedHealth Group.NEWS3: One Put, One Call Option To Know About for UnitedHealth Group.NEWS4: IVV, UNH, DIS, C: Large Inflows Detected at ETF.NEWS5: IVV, UNH, DIS, C: Large Inflows Detected at ETF.
2018-11-27: NEWS1: UnitedHealth’s Optum to acquire a stake in The Polyclinic.NEWS2: Amazon confirms project to mine patient records and more accurately diagnose diseases.NEWS3: Health Care Stocks May Be Safe Haven in Event of Market Downturn.NEWS4: Notable Tuesday Option Activity: AKS, GTES, UNH.NEWS5: Notable Tuesday Option Activity: AKS, GTES, UNH.NEWS6: Stocks To Watch During Market Correction: Who Joins Ulta, Cigna And Domino's?.NEWS7: UnitedHealth to roll out individual health record, predicts what it will look like in 10 years.NEWS8: Final trades: UnitedHealth, Microsoft, Ferrari, CVS & one....NEWS9: UnitedHealth Stock Is Rising and Analysts Expect More Upside.NEWS10: UnitedHealth Group Inc. (UNH): Hedge Funds Are Holding and Forgetting About It.NEWS11: The Zacks Analyst Blog Highlights: JPMorgan, Procter & Gamble, UnitedHealth, McDonald's and Philip Morris.NEWS12: The Zacks Analyst Blog Highlights: JPMorgan, Procter & Gamble, UnitedHealth, McDonald's and Philip Morris.NEWS13: Apple Falls, UnitedHealth Gains, and More Morning Movers.NEWS14: The Zacks Analyst Blog Highlights: JPMorgan, Procter & Gamble, UnitedHealth, McDonald's and Philip Morris.
2018-11-28: NEWS1: Stocks Surge On 3 Words From Fed Chairman Powell.NEWS2: UnitedHealth Rises 3%.NEWS3: Four tariff-proof stocks to weather rising China-U.S. tensions.NEWS4: Amazon's new software examines your medical records.NEWS5: Ex-Dividend Reminder: Principal Financial Group, UnitedHealth Group and Old National Bancorp.NEWS6: Ex-Dividend Reminder: Principal Financial Group, UnitedHealth Group and Old National Bancorp.NEWS7: Dow Movers: VZ, UNH.NEWS8: Dow Movers: VZ, UNH.NEWS9: UnitedHealth Group Highlights Technology, Areas Targeted For Improvement At Investor Day.NEWS10: UnitedHealth Gains on Strong 2019 Outlook, Acquisition News.NEWS11: UnitedHealth Gains on Strong 2019 Outlook, Acquisition News.NEWS12: UnitedHealth Gains on Strong 2019 Outlook, Acquisition News.
2018-11-29: NEWS1: Humana to Gain from Share Buyback, Raise Membership Outlook.NEWS2: Humana to Gain from Share Buyback, Raise Membership Outlook.NEWS3: UnitedHealth Group (UNH) Gains As Market Dips: What You Should Know.NEWS4: Express Scripts' Miller says Washington at incredible moment on drug pricing.NEWS5: Humana to Gain from Share Buyback, Raise Membership Outlook.NEWS6: IBD Stock Of The Day: Centene Stock Nears Buy Point On Election Results, Accelerating Growth.NEWS7: Top Stocks Today: Boeing, UnitedHealth, McDonald's Lead Dow Jones.NEWS8: Why Quest Diagnostics Stock Is Sinking Today.NEWS9: 6 Reasons Why You Should Add Anthem Stock to Your Portfolio.NEWS10: UnitedHealth (UNH) Hits 52-Week High, Can the Run Continue?.NEWS11: UnitedHealth Group Incorporated (UNH) Ex-Dividend Date Scheduled for November 30, 2018.NEWS12: UnitedHealth Group Incorporated (UNH) Ex-Dividend Date Scheduled for November 30, 2018.NEWS13: Dow Records Highest Single Day Gain in 8 Months: 5 Picks.

Answer: Decrease