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:2019-02-07, Stock:UNH, The news for the past five days is as follows:
2019-01-31: NEWS1: U.S. government proposes rule overhauling drug industry rebate system.NEWS2: U.S. government proposes rule changing drug industry rebate system.NEWS3: Noteworthy ETF Outflows: IVE, UNH, T, C.NEWS4: Noteworthy ETF Outflows: IVE, UNH, T, C.NEWS5: Stocks making the biggest moves premarket: DowDuPont, GE, Tesla, Facebook & more.NEWS6: PRESS DIGEST- Wall Street Journal - Jan 31.NEWS7: [$$] New Details on Amazon, Berkshire Hathaway, JPMorgan Health Venture Emerge in Court Battle.NEWS8: New Details on Amazon, Berkshire Hathaway, JPMorgan Health Venture Emerge in Court Battle.
2019-02-01: NEWS1: Cigna's (CI) Q4 Earnings Miss, Revenues Surpass Estimates.NEWS2: Cigna's (CI) Q4 Earnings Miss, Revenues Surpass Estimates.NEWS3: Exclusive: Top U.S. insurer to cover Amgen, Eli Lilly migraine drugs, exclude Teva.NEWS4: Cigna's (CI) Q4 Earnings Miss, Revenues Surpass Estimates.NEWS5: Cigna sinks on investor worries about Trump drug rebate rule change.NEWS6: Cigna sinks on investor worries about Trump drug rebate rule change.NEWS7: Prescription manager stocks dip after rebate change pitched.NEWS8: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..NEWS9: Dow Jones Futures: Amazon.com, CVS Lead Key Movers As Jobs Report Looms.
2019-02-04: NEWS1: Top Stock Reports for Microsoft, Facebook & UnitedHealth.NEWS2: Top Stock Reports for Microsoft, Facebook & UnitedHealth.NEWS3: UnitedHealthcare to Serve People in North Carolina State Medicaid Program.NEWS4: Top Stock Reports for Microsoft, Facebook & UnitedHealth.NEWS5: Has UnitedHealth Group (UNH) Outpaced Other Medical Stocks This Year?.NEWS6: New Strong Buy Stocks for February 4th.
2019-02-05: NEWS1: David Carlson Buys UnitedHealth, Mastercard.NEWS2: IBD 50 Stocks To Watch: Blue Chip UnitedHealth Shapes Bullish Base.NEWS3: Top Ranked Growth Stocks to Buy for February 5th.NEWS4: Top Ranked Growth Stocks to Buy for February 5th.NEWS5: BioTelemetry (BEAT) Hits 52-Week High, Can the Run Continue?.NEWS6: BioTelemetry (BEAT) Hits 52-Week High, Can the Run Continue?.NEWS7: Top Ranked Growth Stocks to Buy for February 5th.NEWS8: BioTelemetry (BEAT) Hits 52-Week High, Can the Run Continue?.NEWS9: UnitedHealth, MercadoLibre, Alphabet and Gilead highlighted as Zacks Bull and Bear of the Day.NEWS10: The Zacks Analyst Blog Highlights: UnitedHealth, Banco Bradesco, Itau, Banco Santander and Rio.NEWS11: The Zacks Analyst Blog Highlights: Microsoft, Facebook, UnitedHealth, Mastercard and ExxonMobil.NEWS12: Dow Records Sixth Straight Weekly Gain: 4 Top Picks.NEWS13: Bull of the Day: UnitedHealth Group (UNH).
2019-02-06: NEWS1: Stocks Slip as Earnings Enthusiasm Fades.NEWS2: Stocks Slip as Earnings Enthusiasm Fades.NEWS3: Market Close Report: NASDAQ Composite index closes at 7,375.28 down -26.80 points.NEWS4: Market Close Report: NASDAQ Composite index closes at 7,375.28 down -26.80 points.NEWS5: Top Ranked Value Stocks to Buy for February 6th.NEWS6: Top Ranked Value Stocks to Buy for February 6th.NEWS7: Top Ranked Value Stocks to Buy for February 6th.NEWS8: UnitedHealth Group Incorporated (NYSE:UNH): The Best Of Both Worlds.

Answer: Decrease