Complex sentence: The Murray River is a river in the southwest of Western Australia which played a significant part in the expansion of Aboriginal settlement in the area south of Perth after the arrival of British settlers at the Swan River Colony in 1829.
Split into simpler sentences: The Murray River is a river in the southwest of Western Australia. It played a significant part in the expansion of Aboriginal settlement in the area south of Perth after the arrival of British settlers at the Swan River Colony in 1829.