[Chris] went to visit his aunt [David] over the holiday and she gave him a present. [Lena]'s biggest accomplishment is raising her son [Chris]. [David] has a son named [Bobby].
('Lena', 'Bobby')
[Lena]'s biggest accomplishment is raising her son [Chris]. [Chris] went to visit his aunt [David] over the holiday and she gave him a present. [David] has a son named [Bobby].
[{('Lena', 'nephew', 'Bobby'): [('Lena', 'sister', 'David'), ('David', 'son', 'Bobby')]}, {('Lena', 'sister', 'David'): [('Lena', 'son', 'Chris'), ('Chris', 'aunt', 'David')]}]
['son', 'aunt', 'son']