[James] took his son [Wesley] out to dinner to celebrate his promotion. [Wesley] brought his son, [Chris], along to celebrate. [Martha] and her brother [Chris] are both adopted from the same family.
('James', 'Martha')
[James] took his son [Wesley] out to dinner to celebrate his promotion. [Wesley] brought his son, [Chris], along to celebrate. [Martha] and her brother [Chris] are both adopted from the same family.
[{('James', 'granddaughter', 'Martha'): [('James', 'son', 'Wesley'), ('Wesley', 'daughter', 'Martha')]}, {('Wesley', 'daughter', 'Martha'): [('Wesley', 'son', 'Chris'), ('Chris', 'sister', 'Martha')]}]
['son', 'son', 'sister']