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:2021-09-22, Stock:SO, The news for the past five days is as follows:
2021-09-15: NEWS1: Georgia Power highlights sensitive species conservation efforts for second week of Environmental Awareness Month.
2021-09-16: NEWS1: Utility provider and its minority supplier share mutually beneficial relationship.NEWS2: Southern Company Gas Charitable Foundation announces $700,000 commitment to advance racial equity.NEWS3: Southern Company announces redemption of Series 2016A 5.25% Junior Subordinated Notes due October 1, 2076.
2021-09-17: NEWS1: Georgia Power's Ida storm teams home following safe, successful restoration.
2021-09-20: nan
2021-09-21: nan

Answer: Decrease