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:2021-02-18, Stock:Unp, The news for the past five days is as follows:
2021-02-10: NEWS1: Union Pacific's Science-based Targets Reducing Emissions Approved.NEWS2: Union Pacific Corporation CFO Jennifer Hamann to Address the Barclays 2021 Industrial Select Conference.
2021-02-11: nan
2021-02-12: NEWS1: Billionaire Richard Chilton’s Top 10 Stock Picks.
2021-02-16: NEWS1: Union Pacific Announces Marketing and Sales, Loup Logistics Appointments.NEWS2: Can Union Pacific Corporation (NYSE:UNP) Maintain Its Strong Returns?.
2021-02-17: nan

Answer: Decrease