[Nancy] make a stew for her son [Jacob]. [Jacob]'s wife [Louise] made a salad for all of them.
('Louise', 'Nancy')
[Nancy] make a stew for her son [Jacob]. [Jacob]'s wife [Louise] made a salad for all of them.
[{('Louise', 'mother-in-law', 'Nancy'): [('Louise', 'husband', 'Jacob'), ('Jacob', 'mother', 'Nancy')]}]
['husband', 'mother']