[Marie] and her sister [Dorothy] played golf together. [Marie] won easily. [James] was enjoying the delicious meal prepared by his mother [Dorothy]. [Pedro] is playing with his daughter [Cheryl] in the yard. After a while, [Cheryl]'s brother [James] joins them.
('Pedro', 'Marie')
[Pedro] is playing with his daughter [Cheryl] in the yard. After a while, [Cheryl]'s brother [James] joins them. [James] was enjoying the delicious meal prepared by his mother [Dorothy]. [Marie] and her sister [Dorothy] played golf together. [Marie] won easily.
[{('Pedro', 'sister', 'Marie'): [('Pedro', 'son', 'James'), ('James', 'aunt', 'Marie')]}, {('James', 'aunt', 'Marie'): [('James', 'mother', 'Dorothy'), ('Dorothy', 'sister', 'Marie')]}, {('Pedro', 'son', 'James'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'brother', 'James')]}]
['daughter', 'brother', 'mother', 'sister']