Completed the following sentence: The women's 100 metre backstroke S9 event at the
2012 Paralympic Games took place on 31 August, at the London Aquatics Centre in the Olympic Park, London. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Ten swimmers took part, representing a total of seven different nations. Australia's Ellie Cole won the gold medal.