Complex sentence: After a few years of the school being in Southwood, a new dress code was started-no writing on shirts, no strips on shirts and no colorful pants, students must wear belts with the shirts tucked in and many more rules.
Split into simpler sentences: After a few years of the school being in Southwood, they started a new dress code. Also, students must wear belts with the shirts tucked in and many more rules.