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:2021-12-09, Stock:Unp, The news for the past five days is as follows:
2021-12-02: NEWS1: Union Pacific (UNP) Slashes 2021 Volume Outlook, Stock Slips.
2021-12-03: nan
2021-12-06: NEWS1: Union Pacific Announces Climate Action Plan to Achieve Its GHG Emissions Reduction Targets and Commits to Net Zero Target.
2021-12-07: NEWS1: Union Pacific (UNP) Gains But Lags Market: What You Should Know.NEWS2: Hedge Funds Aren’t Crazy About Union Pacific Corporation (UNP) Anymore.
2021-12-08: NEWS1: Supply chains: The Omicron variant is a ‘key uncertainty going into 2022,’ economist says.NEWS2: Union Pacific Corp (UNP) EVP & CHIEF HR OFFICER Elizabeth F Whited Sold $614,950 of Shares.

Answer: Decrease