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:2021-08-09, Stock:Unp, The news for the past five days is as follows:
2021-08-02: NEWS1: Union Pacific reopens Keddie-Portola line impacted by California fire.
2021-08-03: NEWS1: Norfolk Southern (NSC) Cheers Investors With 10% Dividend Hike.NEWS2: Why Union Pacific Corporation (NYSE:UNP) Looks Like A Quality Company.
2021-08-04: NEWS1: Transport ETFs Gain on Solid Q2 Earnings.
2021-08-05: nan
2021-08-06: nan

Answer: Decrease