[Chris] and her mom, [Lena], had a big fight. [Lena]'s son, [Charles], refused to get involved. [James] and his grandson [Charles] love to go to the ball park.
('Chris', 'James')
[Chris] and her mom, [Lena], had a big fight. [Lena]'s son, [Charles], refused to get involved. [James] and his grandson [Charles] love to go to the ball park.
[{('Chris', 'grandfather', 'James'): [('Chris', 'brother', 'Charles'), ('Charles', 'grandfather', 'James')]}, {('Chris', 'brother', 'Charles'): [('Chris', 'mother', 'Lena'), ('Lena', 'son', 'Charles')]}]
['mother', 'son', 'grandfather']