[Lillian] invited her daughter, [Andrea], to to shopping with her while [Andrea]'s husband, [John], stayed home and watched the kids.
('Lillian', 'John')
[Lillian] invited her daughter, [Andrea], to to shopping with her while [Andrea]'s husband, [John], stayed home and watched the kids.
[{('Lillian', 'son-in-law', 'John'): [('Lillian', 'daughter', 'Andrea'), ('Andrea', 'husband', 'John')]}]
['daughter', 'husband']