[Lillian] has a good relationship with her sister [Amy]. [Amy] and her son [Milton] enjoy spending time together.
('Lillian', 'Milton')
[Lillian] has a good relationship with her sister [Amy]. [Amy] and her son [Milton] enjoy spending time together.
[{('Lillian', 'nephew', 'Milton'): [('Lillian', 'sister', 'Amy'), ('Amy', 'son', 'Milton')]}]
['sister', 'son']