Complex sentence: The people of Kent are also often fans of the Seattle Seahawks an NFL team, the Seattle Sounders FC, a MLS team, the Seattle Mariners, an MLB team, and the former NBA team the Seattle SuperSonics in the nearby city of Seattle.
Split into simpler sentences: The people of Kent are also often fans of the Seattle Seahawks an NFL team, the Seattle Sounders FC, a MLS team, and the Seattle Mariners, an MLB team. They could also be counted as fans of the former NBA team the Seattle SuperSonics in the nearby city of Seattle.