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:2019-12-12, Stock:Unp, The news for the past five days is as follows:
2019-12-05: NEWS1: Union Pacific (UNP) Issues Lackluster Guidance for Q4 Volumes.NEWS2: North American Railroads Chart The Course For 2020.
2019-12-06: NEWS1: Not Much Chemistry Between Sanofi (SNY) and Hedge Funds.
2019-12-09: nan
2019-12-10: NEWS1: Union Pacific Shuffles Sales And Marketing Groupings.
2019-12-11: nan

Answer: Rise