Original sentence: The Great Seljuq Empire was a medieval Sunni Muslim empire established by the Qynyq branch of Oghuz Turks that once controlled a vast area stretching from the Hindu Kush to eastern Anatolia and from Central Asia to the Persian Gulf
Edited sentence: The Great Seljuq Empire was a medieval Turkish empire established by the Qynyq branch of Oghuz Turks that once controlled a vast area stretching from the Hindu Kush to eastern Anatolia and from Central Asia to the Persian Gulf