[Harold] and his son [Pedro] went to the park to look for different kinds of birds. [Robert] and his mother [Shantel] are waiting for [Shantel]'s husband [Harold] to get home from work. [Robert] is a man with a daughter named [Angelica].
('Pedro', 'Angelica')
[Harold] and his son [Pedro] went to the park to look for different kinds of birds. [Robert] and his mother [Shantel] are waiting for [Shantel]'s husband [Harold] to get home from work. [Robert] is a man with a daughter named [Angelica].
[{('Pedro', 'niece', 'Angelica'): [('Pedro', 'brother', 'Robert'), ('Robert', 'daughter', 'Angelica')]}, {('Pedro', 'brother', 'Robert'): [('Pedro', 'father', 'Harold'), ('Harold', 'son', 'Robert')]}, {('Harold', 'son', 'Robert'): [('Harold', 'wife', 'Shantel'), ('Shantel', 'son', 'Robert')]}]
['father', 'wife', 'son', 'daughter']