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:2018-11-21, Stock:UNH, The news for the past five days is as follows:
2018-11-14: NEWS1: UnitedHealthcare offers up (nearly) free Apple Watch devices as part of wellness program.NEWS2: Dow Movers: UNH, NKE.NEWS3: Dow Movers: UNH, NKE.NEWS4: Scholarship Program Encourages North Dakota Native American College Students to Seek Careers in the Mental Health Field.NEWS5: UnitedHealth offers free Apple Watch to customers who rea....NEWS6: A giant insurer is offering free Apple Watches to customers who meet walking goals.NEWS7: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..
2018-11-15: NEWS1: Is UnitedHealth a Buy at Current Levels?.NEWS2: XLV, SMH: Big ETF Inflows.NEWS3: XLV, SMH: Big ETF Inflows.NEWS4: MARKETS: Stocks could bounce here, but I'm selling the rally.NEWS5: UnitedHealth (UNH) Down 0.9% Since Last Earnings Report: Can It Rebound?.NEWS6: Apple Watch Now Part of UnitedHealthcare Wearable Device Program That Helps Motivate People to Walk Nearly 12,000 Steps Per Day.NEWS7: Humana, PIP Collaborate on Better HealthCare for MA Members.NEWS8: Here's What Makes Molina Healthcare (MOH) an Attractive Bet.NEWS9: Here's What Makes Molina Healthcare (MOH) an Attractive Bet.NEWS10: Artificial Intelligence Key to Improving Health Care Quality, Reducing Costs, Industry Leaders Say.
2018-11-16: NEWS1: UnitedHealth Group Donates $500,000 to Help Californians Affected by Wildfires.NEWS2: Dow Movers: WMT, INTC.NEWS3: Dow Movers: WMT, INTC.NEWS4: Notable ETF Inflow Detected - IUSG, UNH, ABT, DIS.NEWS5: Notable ETF Inflow Detected - IUSG, UNH, ABT, DIS.NEWS6: Why UnitedHealth (UNH) is an Attractive Stock to Own Now.NEWS7: Why UnitedHealth (UNH) is an Attractive Stock to Own Now.
2018-11-19: NEWS1: UnitedHealth Group (UNH) Dips More Than Broader Markets: What You Should Know.NEWS2: Retirees can buy Warby Parker designer glasses for under $50 with UnitedHealth's Medicare plan.NEWS3: Interesting January 2021 Stock Options for UNH.NEWS4: Interesting January 2021 Stock Options for UNH.NEWS5: Affordable Designer Prescription Eyewear from Warby Parker Now Available to People Enrolled in UnitedHealthcare Medicare Advantage Plans.NEWS6: 5 Stocks That Sport Remarkable Interest Coverage Ratio.NEWS7: 5 Stocks That Sport Remarkable Interest Coverage Ratio.NEWS8: 5 Stocks That Sport Remarkable Interest Coverage Ratio.
2018-11-20: NEWS1: Zacks.com highlights: BJ's Restaurants, CBRE Group, Dave & Buster's Entertainment, UnitedHealth Group and Boeing.NEWS2: Zacks.com highlights: BJ's Restaurants, CBRE Group, Dave & Buster's Entertainment, UnitedHealth Group and Boeing.NEWS3: 5 Best Dental Insurance Stocks To Buy Heading Into 2019.NEWS4: Zacks.com highlights: BJ's Restaurants, CBRE Group, Dave & Buster's Entertainment, UnitedHealth Group and Boeing.NEWS5: UnitedHealth Group to Host Investor Conference.NEWS6: 3 Top Healthcare Stocks to Buy Right Now.NEWS7: 3 Top Healthcare Stocks to Buy Right Now.NEWS8: 3 Top Healthcare Stocks to Buy Right Now.NEWS9: UnitedHealth Group (UNH) Dips More Than Broader Markets: What You Should Know.NEWS10: UnitedHealth Group (UNH) Dips More Than Broader Markets: What You Should Know.NEWS11: 15 Safe Dividend Stocks to Buy for the Rest of 2018.NEWS12: 15 Safe Dividend Stocks to Buy for the Rest of 2018.

Answer: Decrease