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:2018-02-07, Stock:Unp, The news for the past five days is as follows:
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.
2018-02-02: NEWS1: Union Pacific: Higher Mineral Volumes Boosted Industrial Revenue.NEWS2: Union Pacific Just Missed 4Q17 Earnings Estimates: Stock Up 0.3%.NEWS3: Why Honeywell’s Home and Building Technologies Margins Narrowed.
2018-02-05: NEWS1: Union Pacific: Petroleum Carloads Aided 4Q17 Chemicals Revenues.NEWS2: Why Union Pacific’s Agricultural Revenues Rose in 4Q17.NEWS3: See what the IHS Markit Score report has to say about Union Pacific Corp..NEWS4: Union Pacific: Why Its Intermodal Revenue Rose in 4Q17.
2018-02-06: NEWS1: A Close Look At Norfolk Southern's Strategy 2020.NEWS2: A Close Look At Norfolk Southern's Strategy 2020.NEWS3: How Analysts See Union Pacific after 4Q17 Earnings.NEWS4: Norfolk Southern a Top Socially Responsible Dividend Stock With 2.1% Yield (NSC).NEWS5: Norfolk Southern a Top Socially Responsible Dividend Stock With 2.1% Yield (NSC).NEWS6: See what the IHS Markit Score report has to say about Union Pacific Corp..NEWS7: Why Union Pacific’s Operating Margins Ran off the Tracks in 4Q17.NEWS8: Union Pacific Corporation CFO Rob Knight to Address the Stifel and Barclays Investor Conferences.

Answer: Decrease