[James]'s son, [Francisco], was ill and needed to be picked up at school. [James] hurried to his side. [Hugh] took his son [Michael] to soccer practice. [Michael] was going to celebrate Christmas with his grandfather [James].
('Hugh', 'Francisco')
[Hugh] took his son [Michael] to soccer practice. [Michael] was going to celebrate Christmas with his grandfather [James]. [James]'s son, [Francisco], was ill and needed to be picked up at school. [James] hurried to his side.
[{('Hugh', 'brother', 'Francisco'): [('Hugh', 'father', 'James'), ('James', 'son', 'Francisco')]}, {('Hugh', 'father', 'James'): [('Hugh', 'son', 'Michael'), ('Michael', 'grandfather', 'James')]}]
['son', 'grandfather', 'son']