[Dale] went to his daughter [Lillian]'s house for [Nicolas]'s birthday party
('Lillian', 'Nicolas')
[Dale] went to his daughter [Lillian]'s house for [Nicolas]'s birthday party
[{('Lillian', 'nephew', 'Nicolas'): [('Lillian', 'brother', 'Dale'), ('Dale', 'son', 'Nicolas')]}]
['brother', 'son']