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:2018-02-09, Stock:UNH, The news for the past five days is as follows:
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.
2018-02-07: NEWS1: ObamaCare Exchange Enrollment Shows Surprise Gain, Despite Trump&apos;s Attacks.NEWS2: Humana (HUM) Tops Q4 Earnings & Revenues, Issues '18 View.NEWS3: Humana (HUM) Tops Q4 Earnings & Revenues, Issues '18 View.NEWS4: WellCare Health (WCG) Beats Q4 Earnings, Raises '18 View.NEWS5: WellCare Health (WCG) Beats Q4 Earnings, Raises '18 View.NEWS6: WellCare Health (WCG) Beats Q4 Earnings, Raises &apos;18 View.
2018-02-08: NEWS1: Top 3 Healthcare Stocks for 2018.NEWS2: This Top Mutual Fund&apos;s Surprising Appetite For Leading Stocks.NEWS3: Why the Dow isn't the best stock index to follow.NEWS4: March 29th Options Now Available For UnitedHealth Group (UNH).NEWS5: March 29th Options Now Available For UnitedHealth Group (UNH).NEWS6: Today’s Research Reports on Trending Tickers: Cascadian Therapeutics and UnitedHealth Group.NEWS7: What Are the Best Healthcare Stocks to Buy? Here Are a Top AI System's 5 Favorites.NEWS8: What Are the Best Healthcare Stocks to Buy? Here Are a Top AI System's 5 Favorites.NEWS9: What Are the Best Healthcare Stocks to Buy? Here Are a Top AI System&apos;s 5 Favorites.

Answer: Rise