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:2020-12-22, Stock:PSA, The news for the past five days is as follows:
2020-12-15: NEWS1: Public Storage (PSA) Notes Key Growth Initiatives, Shares Up 2.6%.
2020-12-16: NEWS1: EQT Is in Talks For Stake in Storable at $2 Billion Value.NEWS2: Is PSA A Good Stock To Buy Now?.
2020-12-17: nan
2020-12-18: nan
2020-12-21: NEWS1: A Deep Dive Into nCino and the Silicon Valley Tech Exodus.NEWS2: 2 Stocks We're Watching Now.

Answer: Rise