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:2019-01-15, Stock:UNH, The news for the past five days is as follows:
2019-01-08: NEWS1: Jon Kyl’s Largest Stock Holdings Were Amazon and UnitedHealth.NEWS2: UnitedHealth Group (UNH) Earnings Expected to Grow: What to Know Ahead of Next Week's Release.NEWS3: UnitedHealth Group (UNH) Earnings Expected to Grow: What to Know Ahead of Next Week's Release.NEWS4: UnitedHealth Group (UNH) Earnings Expected to Grow: What to Know Ahead of Next Week's Release.
2019-01-09: NEWS1: These 5 Companies are Earnings Perfection.NEWS2: These 5 Companies are Earnings Perfection.NEWS3: These 5 Companies are Earnings Perfection.NEWS4: Bill Nygren's Oakmark Fund 4th Quarter Commentary.NEWS5: Dow Posts Longest Winning Run Since November: 5 Top Picks.NEWS6: Dow Posts Longest Winning Run Since November: 5 Top Picks.NEWS7: Patterson Companies, Inc. (PDCO) Ex-Dividend Date Scheduled for January 10, 2019.NEWS8: Patterson Companies, Inc. (PDCO) Ex-Dividend Date Scheduled for January 10, 2019.NEWS9: Engagement in Well-being Programs Strongly Linked to Greater Employee Loyalty, According to Optum Study.NEWS10: Dow Posts Longest Winning Run Since November: 5 Top Picks.NEWS11: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..NEWS12: Have Insiders Been Selling UnitedHealth Group Incorporated (NYSE:UNH) Shares?.
2019-01-10: NEWS1: UnitedHealth Group (UNH) Gains But Lags Market: What You Should Know.NEWS2: Zacks Value Trader Highlights: PayPal, Abbott Labs, UnitedHealth, Lam Research and Visa.NEWS3: Zacks Value Trader Highlights: PayPal, Abbott Labs, UnitedHealth, Lam Research and Visa.NEWS4: Why Does the Stock of Cigna (CI) Look Attractive Now?.NEWS5: Why Does the Stock of Cigna (CI) Look Attractive Now?.NEWS6: Zacks Value Trader Highlights: PayPal, Abbott Labs, UnitedHealth, Lam Research and Visa.NEWS7: Why Does the Stock of Cigna (CI) Look Attractive Now?.
2019-01-11: NEWS1: Cramer's game plan: Entering earnings season with more risk 'than I'd like'.NEWS2: What's in the Cards for UnitedHealth (UNH) Q4 Earnings?.NEWS3: What's in the Cards for UnitedHealth (UNH) Q4 Earnings?.NEWS4: What's in the Cards for UnitedHealth (UNH) Q4 Earnings?.NEWS5: Quest Diagnostics Incorporated (DGX) Ex-Dividend Date Scheduled for January 14, 2019.NEWS6: Quest Diagnostics Incorporated (DGX) Ex-Dividend Date Scheduled for January 14, 2019.NEWS7: UnitedHealth Group (UNH) Gains But Lags Market: What You Should Know.NEWS8: UnitedHealth Group (UNH) Gains But Lags Market: What You Should Know.
2019-01-14: NEWS1: Banks, Airlines, Healthcare: 5 Key Earnings to Watch on Tuesday.NEWS2: Pre-Market Earnings Report for January 15, 2019 :  JPM, UNH, WFC, DAL, INFO, FRC, SNV.NEWS3: Pre-Market Earnings Report for January 15, 2019 :  JPM, UNH, WFC, DAL, INFO, FRC, SNV.NEWS4: What to watch for in UnitedHealth's earnings.NEWS5: Teladoc Is Poised To Benefit From Growth In Telehealth, Baird Says In Upgrade.NEWS6: UnitedHealth Needs a Positive Reaction to Earnings.NEWS7: UnitedHealth Q4 Earnings Preview.NEWS8: Dow Movers: CAT, GS.NEWS9: Dow Movers: CAT, GS.NEWS10: A Look at Dow ETF Ahead of Q4 Earnings.NEWS11: Valeritas Announces V-Go® Received Preferred Status on OptumRx Formularies.

Answer: Rise