[Charlotte] called her father [Dale] on the phone, but he was on the other line with his son [Tony]. He told [Charlotte] he'd call her back in a few minutes.
('Charlotte', 'Tony')
[Charlotte] called her father [Dale] on the phone, but he was on the other line with his son [Tony]. He told [Charlotte] he'd call her back in a few minutes.
[{('Charlotte', 'brother', 'Tony'): [('Charlotte', 'father', 'Dale'), ('Dale', 'son', 'Tony')]}]
['father', 'son']