[Gloria] went with her father [Hugh] and her grandfather [James] to the park to fly some kites. [Hugh] and his son [Bobby] went to the park to look for different kinds of birds.
('Bobby', 'James')
[Hugh] and his son [Bobby] went to the park to look for different kinds of birds. [Gloria] went with her father [Hugh] and her grandfather [James] to the park to fly some kites.
[{('Bobby', 'grandfather', 'James'): [('Bobby', 'father', 'Hugh'), ('Hugh', 'father', 'James')]}, {('Hugh', 'father', 'James'): [('Hugh', 'daughter', 'Gloria'), ('Gloria', 'grandfather', 'James')]}]
['father', 'daughter', 'grandfather']