[Marie] was playing hide-and-seek with her sister [Dorothy]. [Robert] was delighted to watch his son [Mario] steal third base in the Championship baseball game. [Dorothy] is getting married. She is looking forward to her sister, [Beverly], attending. They have n't seen each other since [Beverly] relocated to California with her husband 3 years ago. [Marie] bought her son [Mario] a basketball for his birthday.
('Robert', 'Beverly')
[Robert] was delighted to watch his son [Mario] steal third base in the Championship baseball game. [Marie] bought her son [Mario] a basketball for his birthday. [Marie] was playing hide-and-seek with her sister [Dorothy]. [Dorothy] is getting married. She is looking forward to her sister, [Beverly], attending. They have n't seen each other since [Beverly] relocated to California with her husband 3 years ago.
[{('Robert', 'sister', 'Beverly'): [('Robert', 'son', 'Mario'), ('Mario', 'aunt', 'Beverly')]}, {('Mario', 'aunt', 'Beverly'): [('Mario', 'mother', 'Marie'), ('Marie', 'sister', 'Beverly')]}, {('Marie', 'sister', 'Beverly'): [('Marie', 'sister', 'Dorothy'), ('Dorothy', 'sister', 'Beverly')]}]
['son', 'mother', 'sister', 'sister']