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:2018-10-08, Stock:UNH, The news for the past five days is as follows:
2018-10-01: NEWS1: WellCare Health's (WCG) Buyout to Expand Medicare Business.NEWS2: WellCare Health's (WCG) Buyout to Expand Medicare Business.NEWS3: DaVita unit to pay $270 million to resolve Medicare payments probe.NEWS4: UnitedHealthcare’s 2019 Medicare Plans Offer Stability and Value.NEWS5: Insurers shun state health care website in Florida.
2018-10-02: NEWS1: Health coverage rates will rise for most small businesses next year; UnitedHealthcare enters market.NEWS2: Thousands of People’s Insurance Appeals Went to a Doctor Feds Say Is a Fraud.NEWS3: Thousands of People’s Insurance Appeals Went to a Doctor Feds Say Is a Fraud.
2018-10-03: NEWS1: Chartmaster says it's time to fade one of this year's bes....NEWS2: MEDNAX Buys Radiology Specialists to Expand Business.NEWS3: MEDNAX Buys Radiology Specialists to Expand Business.NEWS4: MEDNAX Buys Radiology Specialists to Expand Business.NEWS5: 5 Top Stocks to Buy in October.NEWS6: 5 Top Stocks to Buy in October.NEWS7: 5 Top Stocks to Buy in October.NEWS8: Quest Diagnostics Incorporated (DGX) Ex-Dividend Date Scheduled for October 04, 2018.NEWS9: Quest Diagnostics Incorporated (DGX) Ex-Dividend Date Scheduled for October 04, 2018.
2018-10-04: NEWS1: Jefferies Raised Its Target Price on UNH Stock: What’s the Outlook?.NEWS2: UnitedHealth Group Stock Hit 52-Week High on October 3.NEWS3: Molina Healthcare Sells MMS Unit to Streamline Business.NEWS4: Molina Healthcare Sells MMS Unit to Streamline Business.NEWS5: XLV, UNH, MDT, LLY: ETF Inflow Alert.NEWS6: XLV, UNH, MDT, LLY: ETF Inflow Alert.
2018-10-05: NEWS1: How Does UNH’s Valuation Look in October?.NEWS2: UnitedHealth Group Expands Its OptumRx Business with Acquisition.

Answer: Decrease