[Gloria] was disappointed when her father, [Hugh] did not allow her to sleep over with her friends. [Hugh] and his son, [Brandon], went to visit [James]. [Brandon] is always so happy to go see his grandfather.
('Gloria', 'James')
[Gloria] was disappointed when her father, [Hugh] did not allow her to sleep over with her friends. [Hugh] and his son, [Brandon], went to visit [James]. [Brandon] is always so happy to go see his grandfather.
[{('Gloria', 'grandfather', 'James'): [('Gloria', 'father', 'Hugh'), ('Hugh', 'father', 'James')]}, {('Hugh', 'father', 'James'): [('Hugh', 'son', 'Brandon'), ('Brandon', 'grandfather', 'James')]}]
['father', 'son', 'grandfather']