[John]'s mom [Lillian] and his grandmother [Ashley] when shopping together.
('Lillian', 'Ashley')
[John]'s mom [Lillian] and his grandmother [Ashley] when shopping together.
[{('Lillian', 'mother', 'Ashley'): [('Lillian', 'son', 'John'), ('John', 'grandmother', 'Ashley')]}]
['son', 'grandmother']