[Hugh] who is [Bobby]'s father grounded [Bobby] after finding out what [Bobby] had done at school. [David] took her father [James] out to dinner one day and also brought along her son [Bobby].
('Hugh', 'James')
[Hugh] who is [Bobby]'s father grounded [Bobby] after finding out what [Bobby] had done at school. [David] took her father [James] out to dinner one day and also brought along her son [Bobby].
[{('Hugh', 'father', 'James'): [('Hugh', 'son', 'Bobby'), ('Bobby', 'grandfather', 'James')]}, {('Bobby', 'grandfather', 'James'): [('Bobby', 'mother', 'David'), ('David', 'father', 'James')]}]
['son', 'mother', 'father']