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:2019-08-12, Stock:Unp, The news for the past five days is as follows:
2019-08-05: nan
2019-08-06: NEWS1: How Does CSX Corporation Generate Its Revenues?.NEWS2: How Does CSX Corporation Generate Its Revenues?.
2019-08-07: NEWS1: Port of Beaumont Nav Dist, TX -- Moody's upgrades Port of Beaumont Nav Dist, TX to A2 from A3; outlook stable.NEWS2: Westinghouse Air Brake Technologies Corporation (WAB) Ex-Dividend Date Scheduled for August 08, 2019.NEWS3: Westinghouse Air Brake Technologies Corporation (WAB) Ex-Dividend Date Scheduled for August 08, 2019.
2019-08-08: nan
2019-08-09: NEWS1: Transport ETFs at a Glance Post Q2 Earnings.NEWS2: Transport ETFs at a Glance Post Q2 Earnings.NEWS3: XLI, HON, UNP, UTX: ETF Outflow Alert.NEWS4: XLI, HON, UNP, UTX: ETF Outflow Alert.NEWS5: Transport ETFs at a Glance Post Q2 Earnings.NEWS6: Is Union Pacific Corporation's (NYSE:UNP) High P/E Ratio A Problem For Investors?.

Answer: Decrease