[Douglas] was eating dinner with his wife [April]. Suddenly, [April] got a call from her mother, [Lillian].
('Douglas', 'Lillian')
[Douglas] was eating dinner with his wife [April]. Suddenly, [April] got a call from her mother, [Lillian].
[{('Douglas', 'mother-in-law', 'Lillian'): [('Douglas', 'wife', 'April'), ('April', 'mother', 'Lillian')]}]
['wife', 'mother']