[Amy]'s daughter, [Mary], and her husband [Nicholas] helped her weed the garden.
('Nicholas', 'Mary')
[Amy]'s daughter, [Mary], and her husband [Nicholas] helped her weed the garden.
[{('Nicholas', 'daughter', 'Mary'): [('Nicholas', 'wife', 'Amy'), ('Amy', 'daughter', 'Mary')]}]
['wife', 'daughter']