[Douglas] loves to dance with his wife. Her name is [April]. [Douglas] went to [Lillian]'s house for dinner.
('April', 'Lillian')
[Douglas] loves to dance with his wife. Her name is [April]. [Douglas] went to [Lillian]'s house for dinner.
[{('April', 'mother-in-law', 'Lillian'): [('April', 'husband', 'Douglas'), ('Douglas', 'mother', 'Lillian')]}]
['husband', 'mother']