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:2018-07-09, Stock:UNH, The news for the past five days is as follows:
2018-06-29: NEWS1: UNH’s Stock Price Performance in June.NEWS2: Dow Jones Keeps Lead, Apple Still In Buy Zone; This Blue Chip Soars.NEWS3: Picking Through the Wreckage of Amazon's Pharmacy Move.NEWS4: XLV, UNH, MRK, ABBV: Large Outflows Detected at ETF.NEWS5: XLV, UNH, MRK, ABBV: Large Outflows Detected at ETF.NEWS6: Dow 30 Stock Roundup: Nike, Walgreens Earnings Impress.
2018-07-02: NEWS1: LabCorp, Philips Tie Up to Advance in Digital Pathology.NEWS2: LabCorp, Philips Tie Up to Advance in Digital Pathology.NEWS3: Let's Just Get Ready for the Second Half.NEWS4: Let's Just Get Ready for the Second Half.NEWS5: UNH’s Recent Dividend Payment and Share Repurchase Program.NEWS6: Analysts’ Recommendations for UnitedHealth Group in June.
2018-07-03: NEWS1: Is it Time to Buy the Cryptocurrencies and Blockchain Stocks?.NEWS2: Is it Time to Buy the Cryptocurrencies and Blockchain Stocks?.
2018-07-05: NEWS1: JNK, HCRF: Big ETF Outflows.NEWS2: JNK, HCRF: Big ETF Outflows.NEWS3: Quest Diagnostics Incorporated (DGX) Ex-Dividend Date Scheduled for July 06, 2018.NEWS4: Quest Diagnostics Incorporated (DGX) Ex-Dividend Date Scheduled for July 06, 2018.NEWS5: Drugmakers try evasion, tougher negotiations to fight new U.S. insurer tactic.NEWS6: FOCUS-Drugmakers try evasion, tougher negotiations to fight new U.S. insurer tactic.
2018-07-06: NEWS1: 6 Stocks to Buy and Hold Forever.NEWS2: 6 Stocks to Buy and Hold Forever.NEWS3: Centene (CNC) Hits 52 Week High: Is Further Upside Left?.NEWS4: Centene (CNC) Hits 52 Week High: Is Further Upside Left?.

Answer: Rise