[James] went to the parade with his wife [Frances] and his son [Hugh]. [Joshua]'s mother, [Frances], was worried about him. He had n't been eating.
('Joshua', 'Hugh')
[Joshua]'s mother, [Frances], was worried about him. He had n't been eating. [James] went to the parade with his wife [Frances] and his son [Hugh].
[{('Joshua', 'brother', 'Hugh'): [('Joshua', 'mother', 'Frances'), ('Frances', 'son', 'Hugh')]}, {('Frances', 'son', 'Hugh'): [('Frances', 'husband', 'James'), ('James', 'son', 'Hugh')]}]
['mother', 'husband', 'son']