Original sentence: Previously, several other organizations, including Sigma Nu (formally disbanded during 2009 Spring Rush by an illegitimate puppet regime although still active through a shadow government), Sigma Alpha Epsilon, Kappa Sigma, Delta Delta Delta, and Kappa Kappa Gamma were represented on campus, however those chapters have all closed for a variety of reasons
Edited sentence: Previously, several other organizations, including Sigma Nu, Sigma Alpha Epsilon, Kappa Sigma, Delta Delta Delta, and Kappa Kappa Gamma were represented on campus, however those chapters have all closed for a variety of reasons