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:2021-01-13, Stock:UNH, The news for the past five days is as follows:
2021-01-06: NEWS1: UnitedHealth To Buy Change; AmerisourceBergen Expands Europe Coverage With Walgreens Deal.NEWS2: SHAREHOLDER ALERT: Rigrodsky & Long, P.A. Announces Investigation of Change Healthcare Inc. Buyout.NEWS3: SHAREHOLDER ALERT: WeissLaw LLP Investigates Change Healthcare Inc..NEWS4: ALERT: Rowley Law PLLC is Investigating Proposed Acquisition of Change Healthcare Inc..NEWS5: UnitedHealth Group to Acquire Change Healthcare in $13 Billion Deal.NEWS6: Why Change Healthcare Stock Is Skyrocketing Today.NEWS7: CHANGE HEALTHCARE ALERT: Bragar Eagel & Squire, P.C. Investigates Sale of CHNG and Encourages Investors to Contact the Firm.NEWS8: UnitedHealth unit Optum to acquire Change Healthcare for $25.75 a share in cash, sending stock up 37% premarket.NEWS9: UnitedHealth Is Buying Change Healthcare in $13 Billion Deal.NEWS10: Dow Jones Today Climbs, Nasdaq Dives As Georgia Senate Race Upends Stocks.NEWS11: Georgia Results Hit Health Insurers. Analysts Think That’s Wrong..NEWS12: Dow Jones Today Rises, Nasdaq Dives As Georgia Senate Race Upends Stock Futures.NEWS13: (CHNG) Alert: Johnson Fistel Investigates Proposed Sale of Change Healthcare; Is $25.75 a Fair Price?.NEWS14: Tesla, Alibaba, UnitedHealth, Walgreens - Wednesday's Premarket Movers.NEWS15: UnitedHealth to Buy Change Healthcare in $13 Billion Deal.NEWS16: UnitedHealth to Purchase Change Healthcare for $8 Billion.NEWS17: UnitedHealth unit Opum to acquire Change Healthcare for $25.75 a share in cash, sending stock up 37% premarket.NEWS18: OptumInsight and Change Healthcare Combine to Advance a More Modern, Information and Technology-Enabled Health Care Platform.
2021-01-07: NEWS1: Top Stock Reports for UnitedHealth, Netflix & Caterpillar.NEWS2: ETFs to Gain on UnitedHealth and Change Healthcare Deal.NEWS3: Company News for Jan 7, 2021.
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.

Answer: Decrease