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:2021-01-15, Stock:UNH, The news for the past five days is as follows:
2021-01-08: NEWS1: UnitedHealth Group (UNH) Stock Sinks As Market Gains: What You Should Know.NEWS2: UnitedHealth (UNH) to Buy Change Healthcare, Stock Gains.NEWS3: AM Best Comments on Credit Ratings of UnitedHealth Group Incorporated and Its Subsidiaries Following Change Healthcare Inc. Acquisition Announcement.NEWS4: The Zacks Analyst Blog Highlights: UnitedHealth Group, Netflix, Caterpillar, General Electric and GlaxoSmithKline.NEWS5: Change Healthcare Holdings LLC -- Moody's says it expects Change Healthcare's debt to be paid in full after acquisition.
2021-01-11: nan
2021-01-12: NEWS1: 4 HMO Stocks in Focus as Players Adapt to Changes in the Industry.
2021-01-13: NEWS1: Analysts Estimate UnitedHealth Group (UNH) to Report a Decline in Earnings: What to Look Out for.NEWS2: Dow ETF in Focus Ahead of Q4 Earnings.
2021-01-14: NEWS1: Billionaire Stephen Mandel’s Lone Pine Is Embracing The Tech Revolution.NEWS2: Team Health Holdings, Inc. -- Moody's announces completion of a periodic review of ratings of Team Health Holdings, Inc..NEWS3: MEDNAX, Inc. -- Moody's announces completion of a periodic review of ratings of MEDNAX, Inc..NEWS4: Use the private sector — especially insurance companies — to speed up COVID-19 vaccines.NEWS5: UnitedHealthcare Expands Access to Virtual Care, Including a New Virtual Primary Care Offering.

Answer: Rise