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:2019-08-05, Stock:PSA, The news for the past five days is as follows:
2019-07-29: nan
2019-07-30: NEWS1: Public Storage (PSA) Surpasses Q2 FFO and Revenue Estimates.NEWS2: Public Storage Reports Results for the Three and Six Months Ended June 30, 2019.NEWS3: Public Storage Announces the Appointment of a New Director.NEWS4: After-Hours Earnings Report for July 30, 2019 :  AAPL, AMGN, GILD, MDLZ, CELG, PSA, AMD, ALL, EQR, OKE, EA, VRSK.NEWS5: After-Hours Earnings Report for July 30, 2019 :  AAPL, AMGN, GILD, MDLZ, CELG, PSA, AMD, ALL, EQR, OKE, EA, VRSK.NEWS6: Buy 6 Top Stocks Set to Beat on Earnings in Q2 Today.
2019-07-31: NEWS1: Public Storage (PSA) Q2 2019 Earnings Call Transcript.NEWS2: Public Storage (PSA) Q2 2019 Earnings Call Transcript.NEWS3: Public Storage Is a Buy After Earnings.NEWS4: Public Storage (PSA) Q2 FFO Beats Estimates on Higher Rent.
2019-08-01: NEWS1: HCP Surpasses Q2 FFO & Revenue Estimates, Raises Outlook.NEWS2: HCP Surpasses Q2 FFO & Revenue Estimates, Raises Outlook.NEWS3: Mid-America Apartment (MAA) Beats Q2 FFO & Revenue Estimates.NEWS4: Mid-America Apartment (MAA) Beats Q2 FFO & Revenue Estimates.NEWS5: HCP Surpasses Q2 FFO & Revenue Estimates, Raises Outlook.NEWS6: Mid-America Apartment (MAA) Beats Q2 FFO & Revenue Estimates.
2019-08-02: nan

Answer: Decrease