[Heidi]'s brother [Robert] and her went to get ice cream. [Wayne]'s son [Robert] entered rehab for the ninth time at the age of thirty.
('Wayne', 'Heidi')
[Wayne]'s son [Robert] entered rehab for the ninth time at the age of thirty. [Heidi]'s brother [Robert] and her went to get ice cream.
[{('Wayne', 'daughter', 'Heidi'): [('Wayne', 'son', 'Robert'), ('Robert', 'sister', 'Heidi')]}]
['son', 'sister']