[Lillian] and her brother [Wayne] went to the department store. [Jeff], [Wayne]'s son, came with them.
('Lillian', 'Jeff')
[Lillian] and her brother [Wayne] went to the department store. [Jeff], [Wayne]'s son, came with them.
[{('Lillian', 'nephew', 'Jeff'): [('Lillian', 'brother', 'Wayne'), ('Wayne', 'son', 'Jeff')]}]
['brother', 'son']