Complex sentence: The Barkly Tableland is one of the five regions in the Northern Territory, Australia, a rolling plain of grassland which runs from the eastern part of the territory into western Queensland, covering 283,648 km² which is 21% of the Northern Territory.
Split into simpler sentences: The Barkly Tableland is a rolling plain of grassland which runs from the eastern part of the territory into western Queensland. It is one of the five regions in the Northern Territory, Australia and covers 283,648 km², 21% of the Northern Territory.