swimming at the 2013 World Aquatics Championships – men's 400 metre freestyle
{'<entity_0>': 'swimming at the 2013 World Aquatics Championships', '<entity_1>': "swimming at the 2013 World Aquatics Championships – men's 400 metre freestyle", '<entity_2>': 'Palau Sant Jordi', '<entity_3>': 'Barcelona'}
[["swimming at the 2013 World Aquatics Championships – men's 400 metre freestyle", 'part of', 'swimming at the 2013 World Aquatics Championships'], ["swimming at the 2013 World Aquatics Championships – men's 400 metre freestyle", 'location', 'Palau Sant Jordi'], ["swimming at the 2013 World Aquatics Championships – men's 400 metre freestyle", 'location', 'Barcelona']]
The <entity_1> event in <entity_0> took place on 28 July at the <entity_2> in <entity_3>.
['sporting event']