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:2018-02-02, Stock:Unp, The news for the past five days is as follows:
2018-01-26: NEWS1: [$$] Union Pacific Hires Former CSX Executive Sanborn.NEWS2: Union Pacific Plunges Despite Strong Improvement In 4Q'17 Results.NEWS3: Union Pacific Plunges Despite Strong Improvement In 4Q'17 Results.NEWS4: Why CNI Saw Huge Decline in 4Q17 Operating Margin.NEWS5: [$$] Union Pacific CEO: Train Braking Technology Is Clogging the Railway.
2018-01-29: NEWS1: Industrials ETFs in Focus on Q4 Earnings.NEWS2: Industrials ETFs in Focus on Q4 Earnings.NEWS3: US Rail Freight Traffic Ran off the Track in Week 3 of 2018.NEWS4: Industrials ETFs in Focus on Q4 Earnings.NEWS5: A Look at Canadian National Railway’s Valuation after Its 4Q17 Results.
2018-01-30: NEWS1: IWB, MCD, MDT, UNP: Large Inflows Detected at ETF.NEWS2: IWB, MCD, MDT, UNP: Large Inflows Detected at ETF.NEWS3: Union Pacific Reaches Analyst Target Price.NEWS4: Union Pacific Reaches Analyst Target Price.NEWS5: Union Pacific: Commodities that Pulled Down Volumes in Week 3.NEWS6: BNSF Railway’s Railcar Traffic Bucked the Trend, Up 2.7% in Week 3.NEWS7: Validea Warren Buffett Strategy Daily Upgrade Report - 1/30/2018.NEWS8: Validea Warren Buffett Strategy Daily Upgrade Report - 1/30/2018.NEWS9: Validea Peter Lynch Strategy Daily Upgrade Report - 1/30/2018.NEWS10: Validea Peter Lynch Strategy Daily Upgrade Report - 1/30/2018.
2018-01-31: NEWS1: Buy 5 Railroad Operators With Strong Growth Potential.NEWS2: Buy 5 Railroad Operators With Strong Growth Potential.NEWS3: Buy 5 Railroad Operators With Strong Growth Potential.NEWS4: Norfolk Souther Corporation (NSC) Ex-Dividend Date Scheduled for February 01, 2018.NEWS5: Norfolk Souther Corporation (NSC) Ex-Dividend Date Scheduled for February 01, 2018.NEWS6: The Freight Volume Summary for Canadian National Railway in Week 3.NEWS7: Free Post Earnings Research Report: Union Pacific’s EPS Rocketed 565.5%.
2018-02-01: NEWS1: Union Pacific Announces Redesigned Charitable Giving Program.

Answer: Decrease