[Lillian] and her daughter [April] went to visit [Lillian]'s mother [Ashley] last Sunday.
('April', 'Ashley')
[Lillian] and her daughter [April] went to visit [Lillian]'s mother [Ashley] last Sunday.
[{('April', 'grandmother', 'Ashley'): [('April', 'mother', 'Lillian'), ('Lillian', 'mother', 'Ashley')]}]
['mother', 'mother']