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:2021-09-07, Stock:UNH, The news for the past five days is as follows:
2021-08-30: NEWS1: UnitedHealth Group's (NYSE:UNH) investors will be pleased with their impressive 231% return over the last five years.
2021-08-31: nan
2021-09-01: NEWS1: UnitedHealth Group (UNH) Outpaces Stock Market Gains: What You Should Know.NEWS2: Medicare in peril as funding runs low.
2021-09-02: NEWS1: 7 Healthcare Stocks to Buy Before $3.5 Trillion Floods In.NEWS2: This Healthcare Benefits Company Is About to Shake the Ground With Its New Footprint.NEWS3: United Health Foundation Donates $1 Million to Support Residents of Louisiana Affected by Hurricane Ida.
2021-09-03: NEWS1: United Health Foundation Donates $1 Million to Support Residents of Louisiana Affected by Hurricane Ida.

Answer: Decrease