[Robert] is the proud husband of [Marie]. [Robert] also have a great relationship with his son, [Mario]. [Lizzie] and her brother [Ronald] played ball outside. [Lizzie]'s brother [Mario] stayed inside.
('Marie', 'Ronald')
[Robert] is the proud husband of [Marie]. [Robert] also have a great relationship with his son, [Mario]. [Lizzie] and her brother [Ronald] played ball outside. [Lizzie]'s brother [Mario] stayed inside.
[{('Marie', 'son', 'Ronald'): [('Marie', 'daughter', 'Lizzie'), ('Lizzie', 'brother', 'Ronald')]}, {('Marie', 'daughter', 'Lizzie'): [('Marie', 'son', 'Mario'), ('Mario', 'sister', 'Lizzie')]}, {('Marie', 'son', 'Mario'): [('Marie', 'husband', 'Robert'), ('Robert', 'son', 'Mario')]}]
['husband', 'son', 'sister', 'brother']