Original sentence: The Gwinnett Gladiators of the ECHL, a professional minor league ice hockey team, plays in the Arena at Gwinnett Center, which opened in 2003 in an unincorporated area of Gwinnett County (the stadium has a Duluth zip code)
Edited sentence: The Gwinnett Gladiators of the ECHL, a professional minor league ice hockey team, plays in the Arena at Gwinnett Center, which opened in 2003 in an unincorporated area of Gwinnett County (the arena has a Duluth zip code)