[Louis] wanted to spend his day off at a museum, so his wife [Beverly] did some research on the best museums nearby. [Marie] was playing hide-and-seek with her sister [Beverly]. [Marie] and her sister [Dorothy] braided each other's hair before school. [Louis] took his son [Samuel] for boxing lessons. He felt the boy needed to toughen up.
('Dorothy', 'Samuel')
[Marie] and her sister [Dorothy] braided each other's hair before school. [Marie] was playing hide-and-seek with her sister [Beverly]. [Louis] wanted to spend his day off at a museum, so his wife [Beverly] did some research on the best museums nearby. [Louis] took his son [Samuel] for boxing lessons. He felt the boy needed to toughen up.
[{('Dorothy', 'nephew', 'Samuel'): [('Dorothy', 'sister', 'Beverly'), ('Beverly', 'son', 'Samuel')]}, {('Dorothy', 'sister', 'Beverly'): [('Dorothy', 'sister', 'Marie'), ('Marie', 'sister', 'Beverly')]}, {('Beverly', 'son', 'Samuel'): [('Beverly', 'husband', 'Louis'), ('Louis', 'son', 'Samuel')]}]
['sister', 'sister', 'husband', 'son']