 Complete the following phrase:  McKeon won four silver and two bronze medals at the 2017 World Swimming Championships. She competed in 100 m butterfly. In the heats she was third, with a time of 56.81. After that in the second semifinal, she finished second setting an Oceania record of 56.23. In the final she improved this time and finished second behind Sarah Sjöström with a record of Oceania time of 56.18. In 