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:2021-06-18, Stock:Unp, The news for the past five days is as follows:
2021-06-11: nan
2021-06-14: NEWS1: Full Steam Ahead: World's Largest Steam Locomotive Returns with 'The Big Boy 2021 Tour'.NEWS2: Where Do Hedge Funds Stand On Union Pacific Corporation (UNP)?.
2021-06-15: NEWS1: Union Pacific (UNP) Gains As Market Dips: What You Should Know.NEWS2: Is Union Pacific Stock a Buy?.
2021-06-16: nan
2021-06-17: NEWS1: Union Pacific Announces DEI Giving Goals and "We Are One" Tour.NEWS2: Zacks Market Edge Highlights: Google, Facebook, NVIDIA, Union Pacific and VOO.

Answer: Decrease