[Theresa]'s brother [Nicholas] was going to be the star in the new show. [Theresa] bought a new video game for her son [Tony].
('Tony', 'Nicholas')
[Theresa] bought a new video game for her son [Tony]. [Theresa]'s brother [Nicholas] was going to be the star in the new show.
[{('Tony', 'uncle', 'Nicholas'): [('Tony', 'mother', 'Theresa'), ('Theresa', 'brother', 'Nicholas')]}]
['mother', 'brother']