[Heidi] and her brother [Kevin] took her grandmother [Ashley] to the store to buy a new dress.
('Ashley', 'Kevin')
[Heidi] and her brother [Kevin] took her grandmother [Ashley] to the store to buy a new dress.
[{('Ashley', 'grandson', 'Kevin'): [('Ashley', 'granddaughter', 'Heidi'), ('Heidi', 'brother', 'Kevin')]}]
['granddaughter', 'brother']