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:2018-09-12, Stock:UNH, The news for the past five days is as follows:
2018-09-05: NEWS1: UnitedHealth Group (UNH) Stock Moves -0.28%: What You Should Know.NEWS2: Health Care Sector Update for 09/05/2018: DERM,AGIO,PRQR,HSGX,CELG,ESRX,UNH.NEWS3: Health Care Sector Update for 09/05/2018: DERM,AGIO,PRQR,HSGX,CELG,ESRX,UNH.NEWS4: WellCare (WCG) Buys Meridian, Boosts Medicaid Membership.NEWS5: UnitedHealth Group Incorporated (UNH) Ex-Dividend Date Scheduled for September 06, 2018.NEWS6: UnitedHealth Group Incorporated (UNH) Ex-Dividend Date Scheduled for September 06, 2018.NEWS7: Prudential Financial a Top Socially Responsible Dividend Stock With 3.6% Yield (PRU).NEWS8: Prudential Financial a Top Socially Responsible Dividend Stock With 3.6% Yield (PRU).
2018-09-06: NEWS1: IBD Stock Of The Day: This Health Leader Hits Buy Point After Tight Trading.NEWS2: UnitedHealth Group Goes Ex-Dividend Today.NEWS3: Analysts Raise Target Prices on UNH Stock in September.NEWS4: Amazon-Berkshire-JPM Health Venture Makes 'Bold Statement' With COO Hire.NEWS5: UnitedHealth Group Stock at 52-Week High, Up 22% Year-to-Date.NEWS6: IUSG, UNH, ORCL, BDX: Large Inflows Detected at ETF.NEWS7: IUSG, UNH, ORCL, BDX: Large Inflows Detected at ETF.NEWS8: Anthem, Inc. (ANTM) Ex-Dividend Date Scheduled for September 07, 2018.NEWS9: Anthem, Inc. (ANTM) Ex-Dividend Date Scheduled for September 07, 2018.NEWS10: UnitedHealth Group (UNH) Stock Moves -0.28%: What You Should Know.NEWS11: UnitedHealth Group (UNH) Stock Moves -0.28%: What You Should Know.
2018-09-07: NEWS1: Cramer's lightning round: Buy Urban Outfitters if it gets hit on Monday.NEWS2: Kewaunee Scientific Corporation (KEQU) Ex-Dividend Date Scheduled for September 10, 2018.NEWS3: Kewaunee Scientific Corporation (KEQU) Ex-Dividend Date Scheduled for September 10, 2018.NEWS4: Minneapolis (City of) MN -- Moody's assigns A2 to Fairview Health Services' (MN) Ser. 2018A-C; outlook revised to negative.NEWS5: Blackstone, UnitedHealth Exercise Restraint; Critics Slam Sprint-T-Mobile Merger.
2018-09-10: NEWS1: Unitedhealth Group Inc (UNH) EVP & CEO, UnitedHealthcare Steven H Nelson Sold $7 million of ....NEWS2: Nasdaq, S&P End Higher for the First Day in Five.NEWS3: Nasdaq, S&P End Higher for the First Day in Five.NEWS4: UnitedHealth Falls 3.02%.NEWS5: Market Close Report: NASDAQ Composite index closes at 7,924.16 up 21.62 points.NEWS6: Market Close Report: NASDAQ Composite index closes at 7,924.16 up 21.62 points.NEWS7: US STOCKS-S&P, Nasdaq edge higher after recent losses but Apple drags.NEWS8: Analyst Favorites With Strong Buyback Activity: Voya Financial Inc Ranks As a Top Pick.NEWS9: Analyst Favorites With Strong Buyback Activity: Voya Financial Inc Ranks As a Top Pick.NEWS10: Mid-Day Update: Stocks Regain Upward Momentum as Bargain-Hunting, Tax Cuts Fuels Gains.NEWS11: Mid-Day Update: Stocks Regain Upward Momentum as Bargain-Hunting, Tax Cuts Fuels Gains.NEWS12: Is UnitedHealth Group Incorporated’s (NYSE:UNH) Balance Sheet Strong Enough To Weather A Storm?.NEWS13: Dow Movers: TRV, NKE.NEWS14: Dow Movers: TRV, NKE.NEWS15: Seventh Annual National Medicare Education Week, Sept. 15-21, Empowers People with Information and Resources before Annual Enrollment Period.
2018-09-11: NEWS1: Woman's Hospital and United Health Foundation Launch Program to Help Expectant Mothers with Opioid Use Disorder.NEWS2: Woman’s Hospital and United Health Foundation Launch Program to Help Expectant Mothers with Opioid Use Disorder.NEWS3: Implied OEW Analyst Target Price: $38.NEWS4: Implied OEW Analyst Target Price: $38.

Answer: Rise