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:2021-12-21, Stock:SO, The news for the past five days is as follows:
2021-12-14: nan
2021-12-15: NEWS1: Southern Company Foundation issues $10 million in grants to foster HBCU talent through innovative collaboration between INROADS, UNCF and Thurgood Marshall College Fund.NEWS2: VIP Growth and Income Portfolio Buys Universal Music Group NV, Vertiv Holdings Co, Tourmaline ....
2021-12-16: NEWS1: Georgia Power welcomes Rivian to Georgia.NEWS2: Nicor Gas Career Academy marks 100-graduate milestone.
2021-12-17: NEWS1: Georgia Power and Microsoft partner to provide more than $200,000 in funding to support Clark Atlanta University's solar powered generator student venture.NEWS2: Fidelity Hastings Street Trust Buys Universal Music Group NV, SAP SE, Glencore PLC, Sells BHP ....
2021-12-20: NEWS1: Southern Company Gas announces the election of Bret Lane as the latest board director.

Answer: Decrease