"2012 Summer" . "50 metre freestyle" . "Women's 50 m freestyle" . "women's 50 meter freestyle" . "Women's 50m freestyle event" . . "Swimming at the 2012 Summer Olympics \u2013 Women's 50 metre freestyle" . . . "50m freestyle" . . "Women's 50m freestyle" . . . . "50 meter freestyle" . . . "50 m freestyle" . . "*" . "women's 50 metre freestyle" . . . . . "37.55" . "50-meter freestyle" . "50 m freestyle" . "X" . "50 metres freestyle" . "50 m freestyle event" . "Women's 50 metre freestyle" . "the same event" . . . "50-metre freestyle" . "women's 50m freestyle" . . "women's 50 metres freestyle" . "Swimming at the 2012 Summer Olympics \u2013 Women's 50 metre freestyle" . "50" . "women's 50 m freestyle" . "2012" . "Women's 50 m freestyle" . "women's 50-metre freestyle" .