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:2019-03-18, Stock:UNH, The news for the past five days is as follows:
2019-03-11: NEWS1: Here's Why You Should Add Tenet Healthcare to Your Portfolio.NEWS2: Here's Why You Should Add Tenet Healthcare to Your Portfolio.NEWS3: Magellan Health Down Nearly 40%, in a Year: What's Next?.NEWS4: Magellan Health Down Nearly 40%, in a Year: What's Next?.NEWS5: Here's Why You Should Add Tenet Healthcare to Your Portfolio.NEWS6: Magellan Health Down Nearly 40%, in a Year: What's Next?.NEWS7: Rally Health Launches Next-Generation Consumer Digital Health Platform.
2019-03-12: NEWS1: Dow Lags as Boeing's Troubles Intensify.NEWS2: Dow Lags as Boeing's Troubles Intensify.NEWS3: Energy Sector Update for 03/12/2019: CRBP,MYGN,DNLI,ZFGN.NEWS4: Energy Sector Update for 03/12/2019: CRBP,MYGN,DNLI,ZFGN.NEWS5: Health Care Sector Update for 03/12/2019: MYGN, DNLI, ZFGN, UNH.NEWS6: Health Care Sector Update for 03/12/2019: MYGN, DNLI, ZFGN, UNH.NEWS7: Amazon changes its policy, a mixed quarter at Dick's, Google gets criticized.NEWS8: See what the IHS Markit Score report has to say about UnitedHealth Group Inc..NEWS9: Amazon changes its policy, mixed quarter at Dick's Sporting Goods, Google gets criticized.NEWS10: UnitedHealth expands discount program to new employer-sponsored plans.NEWS11: Home Depot and Johnson & Johnson Are Among Stocks Driving the S&P 500.NEWS12: Psychemedics Corporation (PMD) Ex-Dividend Date Scheduled for March 13, 2019.NEWS13: Psychemedics Corporation (PMD) Ex-Dividend Date Scheduled for March 13, 2019.NEWS14: UnitedHealth to expand point-of-sale discount program to more clients.NEWS15: UnitedHealth gives drug discounts directly to consumers in move beyond Trump crackdown.NEWS16: UnitedHealth gives drug discounts directly to consumers in move beyond Trump crackdown.NEWS17: Successful Prescription Drug Discount Program Expands to Benefit More Consumers at Point-of-Sale.
2019-03-13: NEWS1: Dow Holds Gains Despite Boeing Turbulence.NEWS2: Dow Holds Gains Despite Boeing Turbulence.NEWS3: NASDAQ Composite Index closes up 32.97 points for the week, rising for the 3rd straight day.NEWS4: NASDAQ Composite Index closes up 32.97 points for the week, rising for the 3rd straight day.NEWS5: House panel probes Anthem, UnitedHealth over short-term health plans.NEWS6: Owens & Minor, Inc. (OMI) Ex-Dividend Date Scheduled for March 14, 2019.NEWS7: Owens & Minor, Inc. (OMI) Ex-Dividend Date Scheduled for March 14, 2019.NEWS8: UnitedHealth Pivots Before Trump Forces the Issue.NEWS9: PRESS DIGEST- New York Times business news - March 13.NEWS10: UnitedHealth to Require Drug Rebates Go to Consumers.
2019-03-14: NEWS1: UnitedHealth Group (UNH) Gains As Market Dips: What You Should Know.NEWS2: Stock Market News For Mar 14, 2019.NEWS3: Stock Market News For Mar 14, 2019.NEWS4: Dow Movers: WMT, UNH.NEWS5: Dow Movers: WMT, UNH.NEWS6: 4 HMO Q4 Outperformers Likely to Retain Beat Streak in Q1.NEWS7: 4 HMO Q4 Outperformers Likely to Retain Beat Streak in Q1.NEWS8: Stock Market News For Mar 14, 2019.NEWS9: Anthem, Inc. (ANTM) Ex-Dividend Date Scheduled for March 15, 2019.NEWS10: Anthem, Inc. (ANTM) Ex-Dividend Date Scheduled for March 15, 2019.NEWS11: 4 HMO Q4 Outperformers Likely to Retain Beat Streak in Q1.
2019-03-15: NEWS1: Why is it Worth Keeping Humana (HUM) in Your Portfolio Now?.NEWS2: Why is it Worth Keeping Humana (HUM) in Your Portfolio Now?.NEWS3: IWV, UNH, ABBV, HON: Large Inflows Detected at ETF.NEWS4: IWV, UNH, ABBV, HON: Large Inflows Detected at ETF.NEWS5: Why is it Worth Keeping Humana (HUM) in Your Portfolio Now?.NEWS6: UnitedHealth Group (UNH) Gains As Market Dips: What You Should Know.NEWS7: UnitedHealth Group (UNH) Gains As Market Dips: What You Should Know.

Answer: Rise