[Dale] and his sister [Nancy] made a card for [Nancy]'s mother [Ashley].
('Ashley', 'Dale')
[Dale] and his sister [Nancy] made a card for [Nancy]'s mother [Ashley].
[{('Ashley', 'son', 'Dale'): [('Ashley', 'daughter', 'Nancy'), ('Nancy', 'brother', 'Dale')]}]
['daughter', 'brother']