[Rebecca] was playing hide-and-seek with her sister [Cheryl]. [Antonio] enjoys talking to his sister. Her name is [Dorothy]. [Dorothy] loved to play dress-up with her daughter [Rebecca]. [Robert] and his brother [Antonio] played at jacks.
('Robert', 'Cheryl')
[Robert] and his brother [Antonio] played at jacks. [Antonio] enjoys talking to his sister. Her name is [Dorothy]. [Dorothy] loved to play dress-up with her daughter [Rebecca]. [Rebecca] was playing hide-and-seek with her sister [Cheryl].
[{('Robert', 'niece', 'Cheryl'): [('Robert', 'sister', 'Dorothy'), ('Dorothy', 'daughter', 'Cheryl')]}, {('Dorothy', 'daughter', 'Cheryl'): [('Dorothy', 'daughter', 'Rebecca'), ('Rebecca', 'sister', 'Cheryl')]}, {('Robert', 'sister', 'Dorothy'): [('Robert', 'brother', 'Antonio'), ('Antonio', 'sister', 'Dorothy')]}]
['brother', 'sister', 'daughter', 'sister']