1977 River Plate Championships
{'<entity_0>': '1977 River Plate Championships', '<entity_1>': 'ATP Buenos Aires', '<entity_2>': '1977', '<entity_3>': 'Argentina', '<entity_4>': 'tennis'}
[['1977 River Plate Championships', 'point in time', '1977'], ['1977 River Plate Championships', 'instance of', 'ATP Buenos Aires'], ['1977 River Plate Championships', 'sport', 'tennis'], ['1977 River Plate Championships', 'country', 'Argentina']]
The first <entity_2> <entity_1>, also known as the <entity_0>, was an Association of Tennis Professionals men's <entity_4> tournament that was played on outdoor clay courts at the Buenos Aires Lawn Tennis Club in Buenos Aires, <entity_3> and held from 14 April through <entity_2>.
['ATP Buenos Aires', 'tennis tournament edition']