[Louis] was proud of his son, [Samuel]. [Pedro] always looked up to his brother [Louis]. [Jennifer] went car shopping with her brother [Samuel]. [Harold] is so proud of his son. [Pedro] is the son's name.
('Harold', 'Jennifer')
[Harold] is so proud of his son. [Pedro] is the son's name. [Pedro] always looked up to his brother [Louis]. [Louis] was proud of his son, [Samuel]. [Jennifer] went car shopping with her brother [Samuel].
[{('Harold', 'granddaughter', 'Jennifer'): [('Harold', 'son', 'Louis'), ('Louis', 'daughter', 'Jennifer')]}, {('Harold', 'son', 'Louis'): [('Harold', 'son', 'Pedro'), ('Pedro', 'brother', 'Louis')]}, {('Louis', 'daughter', 'Jennifer'): [('Louis', 'son', 'Samuel'), ('Samuel', 'sister', 'Jennifer')]}]
['son', 'brother', 'son', 'sister']