[Harold] wanted his son, [Antonio], to go fishing with him. [Antonio] bought a book for his son [Kevin]. [Tracy]'s son [Kevin] and daughter [Laura] went to get ice cream today.
('Laura', 'Harold')
[Tracy]'s son [Kevin] and daughter [Laura] went to get ice cream today. [Antonio] bought a book for his son [Kevin]. [Harold] wanted his son, [Antonio], to go fishing with him.
[{('Laura', 'grandfather', 'Harold'): [('Laura', 'father', 'Antonio'), ('Antonio', 'father', 'Harold')]}, {('Laura', 'father', 'Antonio'): [('Laura', 'brother', 'Kevin'), ('Kevin', 'father', 'Antonio')]}, {('Laura', 'brother', 'Kevin'): [('Laura', 'mother', 'Tracy'), ('Tracy', 'son', 'Kevin')]}]
['mother', 'son', 'father', 'father']