Complex sentence: UNLV claims that Hey Reb! is a western trailblazer who wears a gray hat with a scarlet band around it; however, the campus community is divided over the contention that the mascot appears to be a confederate general, and therefore a symbol of racism.
Split into simpler sentences: UNLV claims that Hey Reb! is a western trailblazer who wears a gray hat with a scarlet band around it. However, the campus community is divided over the contention that the mascot appears to be a confederate general, and therefore a symbol of racism.