[Nicholas] is one of [Theresa]'s brothers. They have lots of fun together. [Nicholas] decided to take his son, [Dennis], on a ski vacation.
('Theresa', 'Dennis')
[Nicholas] is one of [Theresa]'s brothers. They have lots of fun together. [Nicholas] decided to take his son, [Dennis], on a ski vacation.
[{('Theresa', 'nephew', 'Dennis'): [('Theresa', 'brother', 'Nicholas'), ('Nicholas', 'son', 'Dennis')]}]
['brother', 'son']