[Lillian] went on a fishing trip with her youngest child, [John], and her brother [Wayne].
('Wayne', 'John')
[Lillian] went on a fishing trip with her youngest child, [John], and her brother [Wayne].
[{('Wayne', 'nephew', 'John'): [('Wayne', 'sister', 'Lillian'), ('Lillian', 'son', 'John')]}]
['sister', 'son']