[Janet] invited her grandmother [Ashley] and her sister [Andrea] over to watch movies.
('Ashley', 'Andrea')
[Janet] invited her grandmother [Ashley] and her sister [Andrea] over to watch movies.
[{('Ashley', 'granddaughter', 'Andrea'): [('Ashley', 'granddaughter', 'Janet'), ('Janet', 'sister', 'Andrea')]}]
['granddaughter', 'sister']