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:2021-11-01, Stock:Unp, The news for the past five days is as follows:
2021-10-25: NEWS1: Union Pacific Takes Additional Action to Alleviate Supply Chain Congestion.
2021-10-26: NEWS1: Are Institutions Heavily Invested In Union Pacific Corporation's (NYSE:UNP) Shares?.
2021-10-27: nan
2021-10-28: NEWS1: The Zacks Analyst Blog Highlights: JPMorgan, Shopify, PetroChina, Union Pacific, and Moderna.
2021-10-29: NEWS1: Zacks Value Trader Highlights: UnitedHealth, Union Pacific, Home Depot, Ross Stores and JPMorgan.

Answer: Decrease