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:2020-10-08, Stock:Unp, The news for the past five days is as follows:
2020-10-01: NEWS1: Time To Book Profits In Norfolk Southern Stock After A 90% Rally?.NEWS2: Should You Buy FedEx Stock At $250?.
2020-10-02: nan
2020-10-05: nan
2020-10-06: nan
2020-10-07: NEWS1: Does This Valuation Of Union Pacific Corporation (NYSE:UNP) Imply Investors Are Overpaying?.NEWS2: What's in Store for Coronavirus-Hit Delta's (DAL) Q3 Earnings?.NEWS3: Why the Earnings Surprise Streak Could Continue for Union Pacific (UNP).

Answer: Decrease