[Lillian] and her daughter [April] went shopping together last Monday and they bought new shoes for [Lillian]'s kids. [Douglas] had a wife named [April]
('Douglas', 'Lillian')
[Douglas] had a wife named [April] [Lillian] and her daughter [April] went shopping together last Monday and they bought new shoes for [Lillian]'s kids.
[{('Douglas', 'mother-in-law', 'Lillian'): [('Douglas', 'wife', 'April'), ('April', 'mother', 'Lillian')]}]
['wife', 'mother']