[Tracy] was talking about food with her sister [Dorothy]. [Bobby] bought a book for his father [Antonio]. [Tracy] cooked her son [Bobby] his favorite meal yesterday because it was his birthday. [Dorothy] and her son [James] went to the zoo and then out to dinner yesterday.
('Antonio', 'James')
[Bobby] bought a book for his father [Antonio]. [Tracy] cooked her son [Bobby] his favorite meal yesterday because it was his birthday. [Tracy] was talking about food with her sister [Dorothy]. [Dorothy] and her son [James] went to the zoo and then out to dinner yesterday.
[{('Antonio', 'nephew', 'James'): [('Antonio', 'sister', 'Dorothy'), ('Dorothy', 'son', 'James')]}, {('Antonio', 'sister', 'Dorothy'): [('Antonio', 'son', 'Bobby'), ('Bobby', 'aunt', 'Dorothy')]}, {('Bobby', 'aunt', 'Dorothy'): [('Bobby', 'mother', 'Tracy'), ('Tracy', 'sister', 'Dorothy')]}]
['son', 'mother', 'sister', 'son']