Complex sentence: The Gandangara lived throughout an area covering an estimated 4,100 sq. miles in the south-east region of New South Wales from the Nepean River to about Lake George, neighbours of the Dharug, Tharawal, Yuin, Ngunawal and Wiradjuri peoples.
Split into simpler sentences: The Gandangara lived throughout an area covering an estimated 4,100 sq. miles in the south-east region of New South Wales. Their neighbours were the Dharug, Tharawal, Yuin, Ngunawal and Wiradjuri peoples.