[Bobby]'s sister [Bettie] did not want to go shopping but her grandmother [Shantel] forced her to. [Erika] loves her brother [Bobby]. [Aaron] wanted to get a good gift for his sister, [Erika]
('Aaron', 'Shantel')
[Aaron] wanted to get a good gift for his sister, [Erika] [Erika] loves her brother [Bobby]. [Bobby]'s sister [Bettie] did not want to go shopping but her grandmother [Shantel] forced her to.
[{('Aaron', 'grandmother', 'Shantel'): [('Aaron', 'sister', 'Erika'), ('Erika', 'grandmother', 'Shantel')]}, {('Erika', 'grandmother', 'Shantel'): [('Erika', 'sister', 'Bettie'), ('Bettie', 'grandmother', 'Shantel')]}, {('Erika', 'sister', 'Bettie'): [('Erika', 'brother', 'Bobby'), ('Bobby', 'sister', 'Bettie')]}]
['sister', 'brother', 'sister', 'grandmother']