swimming at the 2016 Summer Olympics – men's 4 × 100 metre medley relay
{'<entity_0>': "swimming at the 2016 Summer Olympics – men's 4 × 100 metre medley relay", '<entity_1>': 'Olympic Aquatics Stadium, Rio de Janeiro', '<entity_2>': 'Rio de Janeiro', '<entity_3>': '2016'}
[["swimming at the 2016 Summer Olympics – men's 4 × 100 metre medley relay", 'location', 'Olympic Aquatics Stadium, Rio de Janeiro'], ["swimming at the 2016 Summer Olympics – men's 4 × 100 metre medley relay", 'point in time', '2016'], ["swimming at the 2016 Summer Olympics – men's 4 × 100 metre medley relay", 'location', 'Rio de Janeiro']]
The <entity_0> event at the <entity_3> Summer Olympics in <entity_2> took place on 12 August–13 August at the <entity_1>.
['Olympic sporting event']