[Tony] and his sister [Belva] were hoping for a snow day. [Charlotte]'s brother [Tony] was going to be the star in the new show.
('Charlotte', 'Belva')
[Charlotte]'s brother [Tony] was going to be the star in the new show. [Tony] and his sister [Belva] were hoping for a snow day.
[{('Charlotte', 'sister', 'Belva'): [('Charlotte', 'brother', 'Tony'), ('Tony', 'sister', 'Belva')]}]
['brother', 'sister']