[Nancy] and her brother [George] were having a wonderful time at Disneyland. [Clarence] took his daughter [Nancy] to the store
('Clarence', 'George')
[Clarence] took his daughter [Nancy] to the store [Nancy] and her brother [George] were having a wonderful time at Disneyland.
[{('Clarence', 'son', 'George'): [('Clarence', 'daughter', 'Nancy'), ('Nancy', 'brother', 'George')]}]
['daughter', 'brother']