[Theresa] bought a new video game for her son [Tony]. [Tony] is a very hot guy, but his sister [Belva] is even more attractive.
('Belva', 'Theresa')
[Tony] is a very hot guy, but his sister [Belva] is even more attractive. [Theresa] bought a new video game for her son [Tony].
[{('Belva', 'mother', 'Theresa'): [('Belva', 'brother', 'Tony'), ('Tony', 'mother', 'Theresa')]}]
['brother', 'mother']