[James] went shopping with his wife [Frances]. [Frances] was so proud of her daughter [David] for getting straight A's this semester. [James] and his son [Joshua] went to the store to by bread.
('David', 'Joshua')
[Frances] was so proud of her daughter [David] for getting straight A's this semester. [James] went shopping with his wife [Frances]. [James] and his son [Joshua] went to the store to by bread.
[{('David', 'brother', 'Joshua'): [('David', 'mother', 'Frances'), ('Frances', 'son', 'Joshua')]}, {('Frances', 'son', 'Joshua'): [('Frances', 'husband', 'James'), ('James', 'son', 'Joshua')]}]
['mother', 'husband', 'son']