[Harold]'s son, [Robert], had been misbehaving, so [Harold] had to spank him. [Louis]'s son is [Samuel]. [Samuel] and his father always go fishing together on Sundays and have a great time together. [Samuel]'s grandfather, [Harold], was part of a famous band. [Robert] and his sister [Tracy] got their mother [Tracy] a new computer for her birthday. She really liked it.
('Louis', 'Tracy')
[Louis]'s son is [Samuel]. [Samuel] and his father always go fishing together on Sundays and have a great time together. [Samuel]'s grandfather, [Harold], was part of a famous band. [Harold]'s son, [Robert], had been misbehaving, so [Harold] had to spank him. [Robert] and his sister [Tracy] got their mother [Tracy] a new computer for her birthday. She really liked it.
[{('Louis', 'sister', 'Tracy'): [('Louis', 'father', 'Harold'), ('Harold', 'daughter', 'Tracy')]}, {('Harold', 'daughter', 'Tracy'): [('Harold', 'son', 'Robert'), ('Robert', 'sister', 'Tracy')]}, {('Louis', 'father', 'Harold'): [('Louis', 'son', 'Samuel'), ('Samuel', 'grandfather', 'Harold')]}]
['son', 'grandfather', 'son', 'sister']