Question: The Brown Hill Creek, also known as Willawilla in the Kaurna language, part of which river located in the western suburbs of the Adelaide metropolitan area, in the Australian state of South Australia
Sentence (from "Patawalonga River"): It drains an area of flat, swampy lands formerly known as the Cowandilla Plains, which in the mid-20th century were drained by engineering works, enabling the establishment of Adelaide Airport and the development of residential housing.
Relevant evidence: No