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:2018-08-02, Stock:PSA, The news for the past five days is as follows:
2018-07-26: nan
2018-07-27: nan
2018-07-30: NEWS1: Will Growth Efforts Drive Public Storage (PSA) Q2 Earnings?.NEWS2: Will Growth Efforts Drive Public Storage (PSA) Q2 Earnings?.NEWS3: Will Growth Efforts Drive Public Storage (PSA) Q2 Earnings?.
2018-07-31: NEWS1: GGP Q2 FFO Meets Estimates, Revenues Improve, NOI Up Y/Y.NEWS2: GGP Q2 FFO Meets Estimates, Revenues Improve, NOI Up Y/Y.
2018-08-01: NEWS1: Public Storage (PSA) Tops Q2 Earnings Estimates.NEWS2: Public Storage: 2Q Earnings Snapshot.NEWS3: Public Storage Reports Results for the Three and Six Months Ended June 30, 2018.NEWS4: Noteworthy Wednesday Option Activity: KSU, PSA, APC.NEWS5: Noteworthy Wednesday Option Activity: KSU, PSA, APC.NEWS6: After-Hours Earnings Report for August 1, 2018 :  TMUS, TSLA, MET, ESRX, WPZ, PRU, PSA, ALL, WMB, CXO, SQ, WYNN.NEWS7: After-Hours Earnings Report for August 1, 2018 :  TMUS, TSLA, MET, ESRX, WPZ, PRU, PSA, ALL, WMB, CXO, SQ, WYNN.NEWS8: Public Storage Q2 adjusted earnings of $2.57 per share.NEWS9: Public Storage Q2 adjusted earnings of $2.57 per share.NEWS10: 3 Top Quality Stocks for 2018.

Answer: Decrease