[Lillian] does n't like having to babysit her younger brother, [Nicholas]. [Nicholas] is taking his son [Milton] out for coffee.
('Lillian', 'Milton')
[Lillian] does n't like having to babysit her younger brother, [Nicholas]. [Nicholas] is taking his son [Milton] out for coffee.
[{('Lillian', 'nephew', 'Milton'): [('Lillian', 'brother', 'Nicholas'), ('Nicholas', 'son', 'Milton')]}]
['brother', 'son']