[Harold] went hunting with his son, [Pedro]. [Robert] is picking up his niece [Erika] from school today because her parents are both working. [Harold] and his daughter [Tracy] go to the beach every year. They always have an amazing time. [Erika] and her mother [Tracy] went to volunteer at the homeless shelter last weekend.
('Pedro', 'Robert')
[Harold] went hunting with his son, [Pedro]. [Harold] and his daughter [Tracy] go to the beach every year. They always have an amazing time. [Erika] and her mother [Tracy] went to volunteer at the homeless shelter last weekend. [Robert] is picking up his niece [Erika] from school today because her parents are both working.
[{('Pedro', 'brother', 'Robert'): [('Pedro', 'sister', 'Tracy'), ('Tracy', 'brother', 'Robert')]}, {('Pedro', 'sister', 'Tracy'): [('Pedro', 'father', 'Harold'), ('Harold', 'daughter', 'Tracy')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'daughter', 'Erika'), ('Erika', 'uncle', 'Robert')]}]
['father', 'daughter', 'daughter', 'uncle']