[Pedro] enjoys playing tennis with his sister and her son. Her son is named [Bobby]. [Antonio]'s son [Aaron] is in the hospital. [Aaron]'s brother [Bobby] accidentally hit him with a hammer. [Pedro] and his sister [Marie] were hoping for a snow day.
('Antonio', 'Marie')
[Antonio]'s son [Aaron] is in the hospital. [Aaron]'s brother [Bobby] accidentally hit him with a hammer. [Pedro] enjoys playing tennis with his sister and her son. Her son is named [Bobby]. [Pedro] and his sister [Marie] were hoping for a snow day.
[{('Antonio', 'sister', 'Marie'): [('Antonio', 'brother', 'Pedro'), ('Pedro', 'sister', 'Marie')]}, {('Antonio', 'brother', 'Pedro'): [('Antonio', 'son', 'Bobby'), ('Bobby', 'uncle', 'Pedro')]}, {('Antonio', 'son', 'Bobby'): [('Antonio', 'son', 'Aaron'), ('Aaron', 'brother', 'Bobby')]}]
['son', 'brother', 'uncle', 'sister']