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:2019-06-21, Stock:UNH, The news for the past five days is as follows:
2019-06-14: nan
2019-06-17: NEWS1: UnitedHealth Group (UNH) Outpaces Stock Market Gains: What You Should Know.NEWS2: UnitedHealth Group (UNH) Outpaces Stock Market Gains: What You Should Know.NEWS3: UnitedHealth Group (UNH) Outpaces Stock Market Gains: What You Should Know.
2019-06-18: nan
2019-06-19: NEWS1: Dow Nabs Third Straight on Dovish Fed Comments.NEWS2: Dow Nabs Third Straight on Dovish Fed Comments.NEWS3: UnitedHealth completes $4.3 billion acquisition of DaVita physician group.NEWS4: UnitedHealth completes $4 billion acquisition of DaVita physician group.NEWS5: 'From the get-go we're on the case': Why Colorado's AG made an unprecedented antitrust move.NEWS6: Optum Completes Acquisition of DaVita Medical Group from DaVita.NEWS7: Market Close Report: NASDAQ Composite index closes at 7,987.32 up 33.44 points.NEWS8: Market Close Report: NASDAQ Composite index closes at 7,987.32 up 33.44 points.NEWS9: U.S. trade regulator approves United Health, DaVita deal with condition.NEWS10: Dow Jones Today: Stocks Almost Had Some Fed Fun.NEWS11: U.S. FTC approves UnitedHealth's proposed purchase of DaVita unit.NEWS12: Stock Market Rises After Fed Says It's Ready To Act.NEWS13: Notable Wednesday Option Activity: UNH, RHT, AMGN.NEWS14: Notable Wednesday Option Activity: UNH, RHT, AMGN.NEWS15: XLV, JNJ, UNH, MDT: Large Inflows Detected at ETF.NEWS16: XLV, JNJ, UNH, MDT: Large Inflows Detected at ETF.NEWS17: CVS Stock Has More Going for It Than Just a 3.69% Dividend Yield.NEWS18: CVS Stock Has More Going for It Than Just a 3.69% Dividend Yield.NEWS19: Dow Movers: NKE, UNH.NEWS20: Dow Movers: NKE, UNH.NEWS21: CVS Stock Has More Going for It Than Just a 3.69% Dividend Yield.NEWS22: UnitedHealth Group Schedules Second Quarter 2019 Earnings Release and Conference Call for July 18, 2019.
2019-06-20: NEWS1: UnitedHealth to Buy Equian for $3.2 Billion: Report.NEWS2: UPDATE 1-UnitedHealth to buy healthcare payments firm Equian for $3.2 bln -WSJ.NEWS3: The 7 Best Dow Jones Stocks to Buy for the Rest of 2019.NEWS4: The 7 Best Dow Jones Stocks to Buy for the Rest of 2019.NEWS5: Dow Roars to Highest Close of 2019; Gold, Oil Enjoy Historic Days.NEWS6: Dow Roars to Highest Close of 2019; Gold, Oil Enjoy Historic Days.NEWS7: Market Close Report: NASDAQ Composite Index closes above 8000; up 64.02 points at 8,051.34.NEWS8: Market Close Report: NASDAQ Composite Index closes above 8000; up 64.02 points at 8,051.34.NEWS9: Stock Market News For Jun 20, 2019.NEWS10: Stock Market News For Jun 20, 2019.NEWS11: UnitedHealth Investors Cheer Long-Delayed Approval to Acquire Doctors Network.NEWS12: Stock Market News For Jun 20, 2019.NEWS13: Dow Jones Today: Stocks Almost Had Some Fed Fun.NEWS14: Dow Jones Today: Stocks Almost Had Some Fed Fun.

Answer: Rise