[Robert] was angry with his brother [Antonio] for forgetting to pick him up from school. [Marie] took her brother [Antonio] and her daughter [Michelle] out for dinner at Chili's. [Beverly] recently went on a trip to visit her niece [Michelle].
('Robert', 'Beverly')
[Robert] was angry with his brother [Antonio] for forgetting to pick him up from school. [Marie] took her brother [Antonio] and her daughter [Michelle] out for dinner at Chili's. [Beverly] recently went on a trip to visit her niece [Michelle].
[{('Robert', 'sister', 'Beverly'): [('Robert', 'brother', 'Antonio'), ('Antonio', 'sister', 'Beverly')]}, {('Antonio', 'sister', 'Beverly'): [('Antonio', 'sister', 'Marie'), ('Marie', 'sister', 'Beverly')]}, {('Marie', 'sister', 'Beverly'): [('Marie', 'daughter', 'Michelle'), ('Michelle', 'aunt', 'Beverly')]}]
['brother', 'sister', 'daughter', 'aunt']