[Louis] and his son [Paul] went to the skating rink. [Louis] is helping his son study. His name is [Samuel]. [Louis] played catch with his son [Samuel]. Later, he went out to eat with his own father, [Harold]
('Paul', 'Harold')
[Louis] and his son [Paul] went to the skating rink. [Louis] is helping his son study. His name is [Samuel]. [Louis] played catch with his son [Samuel]. Later, he went out to eat with his own father, [Harold]
[{('Paul', 'grandfather', 'Harold'): [('Paul', 'brother', 'Samuel'), ('Samuel', 'grandfather', 'Harold')]}, {('Samuel', 'grandfather', 'Harold'): [('Samuel', 'father', 'Louis'), ('Louis', 'father', 'Harold')]}, {('Paul', 'brother', 'Samuel'): [('Paul', 'father', 'Louis'), ('Louis', 'son', 'Samuel')]}]
['father', 'son', 'father', 'father']