[Jerry] and her sister [Andrea] are planning on a short vacation. They are planning on visiting their mother [Lillian] in London for Spring break.
('Jerry', 'Lillian')
[Jerry] and her sister [Andrea] are planning on a short vacation. They are planning on visiting their mother [Lillian] in London for Spring break.
[{('Jerry', 'mother', 'Lillian'): [('Jerry', 'sister', 'Andrea'), ('Andrea', 'mother', 'Lillian')]}]
['sister', 'mother']