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:2021-10-22, Stock:SO, The news for the past five days is as follows:
2021-10-15: nan
2021-10-18: NEWS1: Southern Company announces quarterly dividend.NEWS2: Georgia Power celebrates Careers in Energy Week.NEWS3: Nicor Gas announces Northern Illinois Community Initiatives.NEWS4: Former U.S. Nuclear Regulatory Commission Chairman Kristine L. Svinicki to Join Southern Company Board of Directors.
2021-10-19: nan
2021-10-20: nan
2021-10-21: NEWS1: Georgia Power adjusts schedule for Vogtle units 3 & 4.

Answer: Decrease