[Vanetta] and [Michael] had a picnic at the park. They had sandwiches and salad. [Brandon] wanted to buy his mother, [David], a birthday present. But he did n't know what to get her. [David] talks to her son [Michael] every day.
('Brandon', 'Vanetta')
[Brandon] wanted to buy his mother, [David], a birthday present. But he did n't know what to get her. [David] talks to her son [Michael] every day. [Vanetta] and [Michael] had a picnic at the park. They had sandwiches and salad.
[{('Brandon', 'sister', 'Vanetta'): [('Brandon', 'mother', 'David'), ('David', 'daughter', 'Vanetta')]}, {('David', 'daughter', 'Vanetta'): [('David', 'son', 'Michael'), ('Michael', 'sister', 'Vanetta')]}]
['mother', 'son', 'sister']