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:2018-12-24, Stock:PLD, The news for the past five days is as follows:
2018-12-17: NEWS1: Park 70 Metropolitan District, CO -- Moody's assigns Baa3 to Park 70 Metropolitan District, CO GOULT; outlook stable.
2018-12-18: NEWS1: Prologis to Announce Fourth Quarter 2018 Results January 22, 2019.NEWS2: XLRE, PLD, PSA, EQIX: ETF Inflow Alert.NEWS3: XLRE, PLD, PSA, EQIX: ETF Inflow Alert.
2018-12-19: nan
2018-12-20: nan
2018-12-21: NEWS1: Prologis Becomes Oversold.NEWS2: Prologis Becomes Oversold.

Answer: Decrease