[Lillian] and her husband, [George], were cooking meatloaf. [John], [George]'s son, was hungry, and asked them when it would be done.
('Lillian', 'John')
[Lillian] and her husband, [George], were cooking meatloaf. [John], [George]'s son, was hungry, and asked them when it would be done.
[{('Lillian', 'son', 'John'): [('Lillian', 'husband', 'George'), ('George', 'son', 'John')]}]
['husband', 'son']