[Clarence] was excited to celebrate his granddaughter, [Andrea]'s birthday. [Andrea] invited her mother, [Lillian], along for the special dinner.
('Lillian', 'Clarence')
[Clarence] was excited to celebrate his granddaughter, [Andrea]'s birthday. [Andrea] invited her mother, [Lillian], along for the special dinner.
[{('Lillian', 'father', 'Clarence'): [('Lillian', 'daughter', 'Andrea'), ('Andrea', 'grandfather', 'Clarence')]}]
['daughter', 'grandfather']