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:2018-03-12, Stock:PSA, The news for the past five days is as follows:
2018-03-05: NEWS1: Factors of Influence in 2018, Key Indicators and Opportunity within Arch Coal, Norfolk Souther, Public Storage, VirnetX Holding, Xcel Energy, and Investors Real Estate Trust — New Research Emphasizes Economic Growth.
2018-03-06: NEWS1: Public Storage To Present At Citi Conference; Webcast At 1:35 PM ET.NEWS2: Public Storage To Present At Citi Conference; Webcast At 1:35 PM ET.
2018-03-07: NEWS1: Public Storage Announces Be Our Valentine Video Contest Winners.
2018-03-08: NEWS1: Public Storage Launches What a Joke! Video Contest.NEWS2: Notable ETF Outflow Detected - IYR, AMT, CCI, PSA.NEWS3: Notable ETF Outflow Detected - IYR, AMT, CCI, PSA.
2018-03-09: nan

Answer: Decrease