[Nancy] went to her brother [Dale]'s house and his daughter [Charlotte] was playing outside
('Nancy', 'Charlotte')
[Nancy] went to her brother [Dale]'s house and his daughter [Charlotte] was playing outside
[{('Nancy', 'niece', 'Charlotte'): [('Nancy', 'brother', 'Dale'), ('Dale', 'daughter', 'Charlotte')]}]
['brother', 'daughter']