[Nicholas] decided to give his son [Dennis], for his birthday, the latest version of Apple watch. [Nicholas] went to pick up his son [Milton] from the baseball practice.
('Dennis', 'Milton')
[Nicholas] decided to give his son [Dennis], for his birthday, the latest version of Apple watch. [Nicholas] went to pick up his son [Milton] from the baseball practice.
[{('Dennis', 'brother', 'Milton'): [('Dennis', 'father', 'Nicholas'), ('Nicholas', 'son', 'Milton')]}]
['father', 'son']