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:2018-02-07, Stock:UNH, The news for the past five days is as follows:
2018-01-31: NEWS1: NYSE trader: We're starting to see some rotation out of health care stocks.NEWS2: What To Make Of The Amazon, Berkshire Hathaway and JP Morgan Healthcare Company.NEWS3: What To Make Of The Amazon, Berkshire Hathaway and JP Morgan Healthcare Company.NEWS4: Taking UnitedHealth's Temperature After Amazon-Berkshire-JPMorgan Announcement.NEWS5: Anthem (ANTM) Tops Q4 Earnings & Revenues, Issues '18 View.NEWS6: Anthem (ANTM) Tops Q4 Earnings & Revenues, Issues '18 View.NEWS7: Dow Movers: MRK, BA.NEWS8: Dow Movers: MRK, BA.NEWS9: Leerink Suggests 4 Health Care Plays On Recent Weakness.NEWS10: Anthem (ANTM) Tops Q4 Earnings & Revenues, Issues &apos;18 View.NEWS11: Empresas Banmédica, UnitedHealth Group Complete Combination.NEWS12: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..NEWS13: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..NEWS14: Stocks Hit Hard Amid Harsh Headwinds.NEWS15: Stocks Hit Hard Amid Harsh Headwinds.NEWS16: How to play the Amazon-Berkshire-JP Morgan health care mo....
2018-02-01: NEWS1: U.S. government proposes 1.84 pct hike in 2019 payments to Medicare insurers.NEWS2: IWF, UNH, PEP, MMM: Large Outflows Detected at ETF.NEWS3: IWF, UNH, PEP, MMM: Large Outflows Detected at ETF.NEWS4: Top Ranked Momentum Stocks to Buy for February 1st.NEWS5: Top Ranked Momentum Stocks to Buy for February 1st.NEWS6: Cigna Q4 Earnings Top on Higher Enrollment, 2018 View Issued.NEWS7: Cigna Q4 Earnings Top on Higher Enrollment, 2018 View Issued.NEWS8: UnitedHealth Group (UNH): Strong Industry, Solid Earnings Estimate Revisions.NEWS9: UnitedHealth Group (UNH): Strong Industry, Solid Earnings Estimate Revisions.NEWS10: Top Ranked Momentum Stocks to Buy for February 1st.NEWS11: UnitedHealth Group (UNH): Strong Industry, Solid Earnings Estimate Revisions.NEWS12: Revealed: The Top 10 Stocks in the Fool 100 Index.NEWS13: Revealed: The Top 10 Stocks in the Fool 100 Index.
2018-02-02: NEWS1: Yahoo Finance Answers: Will Amazon make my health care cheaper?.
2018-02-05: NEWS1: Will Tax Reform Affect Health Care Sector Earnings in 2018?.NEWS2: Can Solid Retail Segment Drive Humana's (HUM) Q4 Earnings?.NEWS3: Can Solid Retail Segment Drive Humana's (HUM) Q4 Earnings?.NEWS4: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..
2018-02-06: NEWS1: Cramer's lightning round: UnitedHealth is my go-to health care stock.NEWS2: Cramer's lightning round: UnitedHealth is my go-to health care stock.NEWS3: Jeff Auxier Comments on UnitedHealth.NEWS4: Jeff Auxier's 4th Quarter Shareholder Letter.NEWS5: Centene (CNC) Beats Q4 Earnings & Revenues, Ups '18 View.NEWS6: Centene (CNC) Beats Q4 Earnings & Revenues, Ups '18 View.NEWS7: Either Analysts Got The Components Wrong or The Dow Headed 12% Higher.NEWS8: Either Analysts Got The Components Wrong or The Dow Headed 12% Higher.

Answer: Rise