[Dorothy] does n't like her brother [Louis]. [Dorothy] is a woman with a sister named [Beverly]. [Antonio] went jogging with his brother [Robert]. [Robert]'s brother [Louis] prefers running instead.
('Beverly', 'Antonio')
[Dorothy] is a woman with a sister named [Beverly]. [Dorothy] does n't like her brother [Louis]. [Antonio] went jogging with his brother [Robert]. [Robert]'s brother [Louis] prefers running instead.
[{('Beverly', 'brother', 'Antonio'): [('Beverly', 'brother', 'Robert'), ('Robert', 'brother', 'Antonio')]}, {('Beverly', 'brother', 'Robert'): [('Beverly', 'sister', 'Dorothy'), ('Dorothy', 'brother', 'Robert')]}, {('Dorothy', 'brother', 'Robert'): [('Dorothy', 'brother', 'Louis'), ('Louis', 'brother', 'Robert')]}]
['sister', 'brother', 'brother', 'brother']