[Heidi] wants to go visit her grandmother [Ashley] at her new home. [Heidi] does n't want to go alone and asked her brother [Robert] to come with her.
('Robert', 'Ashley')
[Heidi] wants to go visit her grandmother [Ashley] at her new home. [Heidi] does n't want to go alone and asked her brother [Robert] to come with her.
[{('Robert', 'grandmother', 'Ashley'): [('Robert', 'sister', 'Heidi'), ('Heidi', 'grandmother', 'Ashley')]}]
['sister', 'grandmother']