[Charlotte]'s brother [James] was going to be the star in the new show. [Charlotte] took her younger sister [Rosetta] to the carnival last weekend.
('Rosetta', 'James')
[Charlotte] took her younger sister [Rosetta] to the carnival last weekend. [Charlotte]'s brother [James] was going to be the star in the new show.
[{('Rosetta', 'brother', 'James'): [('Rosetta', 'sister', 'Charlotte'), ('Charlotte', 'brother', 'James')]}]
['sister', 'brother']