[Nancy] got a job working at the same office as her son, [Jeff] and her mother, [Ashley].
('Jeff', 'Ashley')
[Nancy] got a job working at the same office as her son, [Jeff] and her mother, [Ashley].
[{('Jeff', 'grandmother', 'Ashley'): [('Jeff', 'mother', 'Nancy'), ('Nancy', 'mother', 'Ashley')]}]
['mother', 'mother']