Mauritania at the 2014 Summer Youth Olympics
{'<entity_0>': 'Mauritania at the 2014 Summer Youth Olympics', '<entity_1>': '2014', '<entity_2>': 'Mauritania', '<entity_3>': 'Nanjing'}
[['Mauritania at the 2014 Summer Youth Olympics', 'country', 'Mauritania'], ['Mauritania at the 2014 Summer Youth Olympics', 'point in time', '2014'], ['Mauritania at the 2014 Summer Youth Olympics', 'location', 'Nanjing']]
<entity_2> competed at the <entity_0>, in <entity_3>, China from 16 August to <entity_1>.
['nation at sport competition']