[Ashley] took her daughter, [Lillian], out for pizza. [John], [Lillian]'s son, came too.
('Ashley', 'John')
[Ashley] took her daughter, [Lillian], out for pizza. [John], [Lillian]'s son, came too.
[{('Ashley', 'grandson', 'John'): [('Ashley', 'daughter', 'Lillian'), ('Lillian', 'son', 'John')]}]
['daughter', 'son']