Original sentence: It claims, as other revisionist groups do, that Khuzestan's historical Arab identity means that the province should be given autonomy within a federal political system.Most adhere to a controversial historical revisionist perspective which denies the well-established Iranian history and heritage of Khuzestan
Edited sentence: It claims that Khuzestan's historical Arab identity means that the province should be given autonomy within a federal political system.Most believe that Khuzestan's Arab heritage proves that it has an identity that distinguishes it from the rest of Iran