[Amy] took her sister [Nancy] out for dinner to celebrate her birthday. [Amy] and her daughter [Jennifer] went to church. They were both very religious.
('Nancy', 'Jennifer')
[Amy] took her sister [Nancy] out for dinner to celebrate her birthday. [Amy] and her daughter [Jennifer] went to church. They were both very religious.
[{('Nancy', 'niece', 'Jennifer'): [('Nancy', 'sister', 'Amy'), ('Amy', 'daughter', 'Jennifer')]}]
['sister', 'daughter']