[Nancy] borrowed some money from her brother [George]. [Nancy] took her younger sister [Theresa] to the carnival last weekend.
('Theresa', 'George')
[Nancy] took her younger sister [Theresa] to the carnival last weekend. [Nancy] borrowed some money from her brother [George].
[{('Theresa', 'brother', 'George'): [('Theresa', 'sister', 'Nancy'), ('Nancy', 'brother', 'George')]}]
['sister', 'brother']