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:2019-11-21, Stock:Unp, The news for the past five days is as follows:
2019-11-14: NEWS1: Union Pacific (NYSE:UNP) Seems To Use Debt Quite Sensibly.NEWS2: Union Pacific Elects Christopher J. Williams to Board of Directors.NEWS3: Union Pacific Corporation Declares Fourth Quarter 2019 Dividend.NEWS4: Kansas City Southern Stock Up 14.9% in a Month: Here's Why.
2019-11-15: nan
2019-11-18: nan
2019-11-19: NEWS1: Union Pacific Corporation Announces Expiration of Exchange Offers and Increase in Size of Exchange Offers Limit.
2019-11-20: nan

Answer: Rise