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:2021-09-29, Stock:Unp, The news for the past five days is as follows:
2021-09-22: nan
2021-09-23: NEWS1: Union Pacific Corporation Announces Third Quarter 2021 Earnings Release Date.
2021-09-24: NEWS1: Are You Looking for a High-Growth Dividend Stock? Union Pacific (UNP) Could Be a Great Choice.
2021-09-27: NEWS1: 3 Transportation Stocks With Dividend Growth to Keep Tabs On.
2021-09-28: NEWS1: Union Pacific (NYSE:UNP) jumps 3.1% this week, though earnings growth is still tracking behind five-year shareholder returns.NEWS2: Operating Ratio Improvement Aids Railroads: An Analysis.NEWS3: Do Hedge Funds Love Union Pacific Corporation (UNP)?.NEWS4: QUALCOMM, National Bank Holdings, Union Pacific, United Parcel Service and Norfolk Southern highlighted as Zacks Bull and Bear of the Day.

Answer: Rise