[Nicholas] was eating dinner at his sister [Theresa]'s house when his daughter [Jennifer] called and said she needed a ride home from band practice.
('Theresa', 'Jennifer')
[Nicholas] was eating dinner at his sister [Theresa]'s house when his daughter [Jennifer] called and said she needed a ride home from band practice.
[{('Theresa', 'niece', 'Jennifer'): [('Theresa', 'brother', 'Nicholas'), ('Nicholas', 'daughter', 'Jennifer')]}]
['brother', 'daughter']