[Lillian] took her son [Timothy] on a trip. They went to see [Lillian]'s mother, [Ashley].
('Timothy', 'Ashley')
[Lillian] took her son [Timothy] on a trip. They went to see [Lillian]'s mother, [Ashley].
[{('Timothy', 'grandmother', 'Ashley'): [('Timothy', 'mother', 'Lillian'), ('Lillian', 'mother', 'Ashley')]}]
['mother', 'mother']