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:2018-12-06, Stock:UNH, The news for the past five days is as follows:
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.
2018-11-30: NEWS1: Health-care sector poised to have 'banner year' in 2019, ....NEWS2: Kewaunee Scientific Corporation (KEQU) Ex-Dividend Date Scheduled for December 03, 2018.NEWS3: Kewaunee Scientific Corporation (KEQU) Ex-Dividend Date Scheduled for December 03, 2018.NEWS4: The Zacks Analyst Blog Highlights: Boeing, Merck, Microsoft, UnitedHealth and American Express.NEWS5: Dow 30 Stock Roundup: BA's $383M Modification Contract, MSFT's Army Contract.NEWS6: Five things that happened as you shopped holiday sales.NEWS7: UnitedHealth Group (UNH) Gains As Market Dips: What You Should Know.NEWS8: UnitedHealth Group (UNH) Gains As Market Dips: What You Should Know.
2018-12-03: NEWS1: Healthcare Takes Wall Street Lead: 4 Picks.NEWS2: Anthem, Inc. (ANTM) Ex-Dividend Date Scheduled for December 04, 2018.NEWS3: Anthem, Inc. (ANTM) Ex-Dividend Date Scheduled for December 04, 2018.NEWS4: The Zacks Analyst Blog Highlights: General Motors, Boeing, Microsoft, Merck and UnitedHealth.NEWS5: The Zacks Analyst Blog Highlights: General Motors, Boeing, Microsoft, Merck and UnitedHealth.NEWS6: Aetna and Ascension Join Five Other Leading Health Care Companies in Blockchain-Driven Effort to Address Health Care Provider Data Issues.NEWS7: The Zacks Analyst Blog Highlights: General Motors, Boeing, Microsoft, Merck and UnitedHealth.NEWS8: United Health Group Stock Has Risen 28% in 2018.
2018-12-04: NEWS1: Ronald Muhlenkamp's Top 5 Positions as of 3rd Quarter.NEWS2: UnitedHealth Falls 3%.NEWS3: The Zacks Analyst Blog Highlights: Anthem, HCA, Dr. Reddy's and UnitedHealth.NEWS4: The Zacks Analyst Blog Highlights: Anthem, HCA, Dr. Reddy's and UnitedHealth.NEWS5: UnitedHealthcare’s uBundle Helps Employers Save on Medical Premiums When Adding Specialty Benefit Plans.NEWS6: The Zacks Analyst Blog Highlights: Anthem, HCA, Dr. Reddy's and UnitedHealth.NEWS7: Detailed Research: Economic Perspectives on The Western Union, Allscripts Healthcare Solutions, Terreno Realty, UnitedHealth Group, LendingClub, and W.P. Carey — What Drives Growth in Today's Competitive Landscape.NEWS8: Optum Earns Acclaim from Frost & Sullivan for Leading the Population Health Management Market with Its Integrated Technology Platforms and Services.

Answer: Decrease