[Harold] went hunting with his son, [Louis]. [Harold] was shopping for a new dress for his daughter [Tracy]. [Annie] and her father [Pedro] went to visit his sister [Tracy].
('Louis', 'Annie')
[Harold] went hunting with his son, [Louis]. [Harold] was shopping for a new dress for his daughter [Tracy]. [Annie] and her father [Pedro] went to visit his sister [Tracy].
[{('Louis', 'niece', 'Annie'): [('Louis', 'brother', 'Pedro'), ('Pedro', 'daughter', 'Annie')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'sister', 'Tracy'), ('Tracy', 'brother', 'Pedro')]}, {('Louis', 'sister', 'Tracy'): [('Louis', 'father', 'Harold'), ('Harold', 'daughter', 'Tracy')]}]
['father', 'daughter', 'brother', 'daughter']