Mary had two daughters [Beverly] and [Dorothy] that were very close in age. She did n't have her son [Robert] until the girls were almost old enough to move out. [Robert] and his brother [Louis] were playing tag in the park. [Dorothy] picked up her daughter [Rebecca] from school early.
('Rebecca', 'Louis')
[Dorothy] picked up her daughter [Rebecca] from school early. Mary had two daughters [Beverly] and [Dorothy] that were very close in age. She did n't have her son [Robert] until the girls were almost old enough to move out. [Robert] and his brother [Louis] were playing tag in the park.
[{('Rebecca', 'uncle', 'Louis'): [('Rebecca', 'mother', 'Dorothy'), ('Dorothy', 'brother', 'Louis')]}, {('Dorothy', 'brother', 'Louis'): [('Dorothy', 'brother', 'Robert'), ('Robert', 'brother', 'Louis')]}, {('Dorothy', 'brother', 'Robert'): [('Dorothy', 'sister', 'Beverly'), ('Beverly', 'brother', 'Robert')]}]
['mother', 'sister', 'brother', 'brother']