premise: Oak Flats is a suburb of Shellharbour, New South Wales, Australia situated on the south western shores of Lake Illawarra and within the South Coast region of New South Wales. It is a residential area, which had a population of 6,415 at the 2016 census .
hypothesis: Oak Flats is located in the southern hemisphere.
reason: Australia is in the southern hemisphere. It's difficult for the system because I used geography.