[Lillian] went on a vacation with her brother [Nicholas]. [Nicholas] 'son [Milton] could not believe that his father bought him a coffee machine for his birthday.
('Lillian', 'Milton')
[Lillian] went on a vacation with her brother [Nicholas]. [Nicholas] 'son [Milton] could not believe that his father bought him a coffee machine for his birthday.
[{('Lillian', 'nephew', 'Milton'): [('Lillian', 'brother', 'Nicholas'), ('Nicholas', 'son', 'Milton')]}]
['brother', 'son']