[Bobby] went to the park with his father, [Antonio]. [Aaron]'s father, [Antonio], bought him some ice cream. [Erika] is best friends with her sister [Bettie]. [Bettie] does not get along with her brother [Bobby].
('Aaron', 'Bettie')
[Aaron]'s father, [Antonio], bought him some ice cream. [Bobby] went to the park with his father, [Antonio]. [Erika] is best friends with her sister [Bettie]. [Bettie] does not get along with her brother [Bobby].
[{('Aaron', 'sister', 'Bettie'): [('Aaron', 'sister', 'Erika'), ('Erika', 'sister', 'Bettie')]}, {('Aaron', 'sister', 'Erika'): [('Aaron', 'father', 'Antonio'), ('Antonio', 'daughter', 'Erika')]}, {('Antonio', 'daughter', 'Erika'): [('Antonio', 'son', 'Bobby'), ('Bobby', 'sister', 'Erika')]}]
['father', 'son', 'sister', 'sister']