swimming at the 2011 World Aquatics Championships – women's 50 metre freestyle
{'<entity_0>': "swimming at the 2011 World Aquatics Championships – women's 50 metre freestyle", '<entity_1>': 'swimming', '<entity_2>': '2011'}
[["swimming at the 2011 World Aquatics Championships – women's 50 metre freestyle", 'sport', 'swimming'], ["swimming at the 2011 World Aquatics Championships – women's 50 metre freestyle", 'point in time', '2011']]
The <entity_0> competition of the <entity_1> events at the <entity_2> World Aquatics Championships was held on July 30 with the heats and the semifinals and July 31 with the final.
['sporting event']