[Chris] and his father [Wesley] played video games all day last Saturday. [Wesley] and his son, [Charles], went to visit [James]. [Charles] is always so happy to go see his grandfather.
('Chris', 'James')
[Chris] and his father [Wesley] played video games all day last Saturday. [Wesley] and his son, [Charles], went to visit [James]. [Charles] is always so happy to go see his grandfather.
[{('Chris', 'grandfather', 'James'): [('Chris', 'brother', 'Charles'), ('Charles', 'grandfather', 'James')]}, {('Chris', 'brother', 'Charles'): [('Chris', 'father', 'Wesley'), ('Wesley', 'son', 'Charles')]}]
['father', 'son', 'grandfather']