[Bernardo] and his mother, [Tracy], went to the movie theater. [Tracy]'s father, [Harold], met them there. [Bobby] and her mom, [Tracy], had a big fight. [Tracy]'s son, [Bernardo], refused to get involved.
('Bobby', 'Harold')
[Bobby] and her mom, [Tracy], had a big fight. [Tracy]'s son, [Bernardo], refused to get involved. [Bernardo] and his mother, [Tracy], went to the movie theater. [Tracy]'s father, [Harold], met them there.
[{('Bobby', 'grandfather', 'Harold'): [('Bobby', 'brother', 'Bernardo'), ('Bernardo', 'grandfather', 'Harold')]}, {('Bernardo', 'grandfather', 'Harold'): [('Bernardo', 'mother', 'Tracy'), ('Tracy', 'father', 'Harold')]}, {('Bobby', 'brother', 'Bernardo'): [('Bobby', 'mother', 'Tracy'), ('Tracy', 'son', 'Bernardo')]}]
['mother', 'son', 'mother', 'father']