[Marie] cooked dinner for her son [Allan] and her father [Harold]. [Pedro] is [Allan]'s mom's brother. [Pedro] likes to go fishing with his sister. Her name is [Beverly].
('Harold', 'Beverly')
[Marie] cooked dinner for her son [Allan] and her father [Harold]. [Pedro] is [Allan]'s mom's brother. [Pedro] likes to go fishing with his sister. Her name is [Beverly].
[{('Harold', 'daughter', 'Beverly'): [('Harold', 'daughter', 'Marie'), ('Marie', 'sister', 'Beverly')]}, {('Marie', 'sister', 'Beverly'): [('Marie', 'brother', 'Pedro'), ('Pedro', 'sister', 'Beverly')]}, {('Marie', 'brother', 'Pedro'): [('Marie', 'son', 'Allan'), ('Allan', 'uncle', 'Pedro')]}]
['daughter', 'son', 'uncle', 'sister']