Joe asked [Dale] if his uncle [John] had any experience with cars. [George] took his son [John] for boxing lessons. He felt the boy needed to toughen up.
('George', 'Dale')
[George] took his son [John] for boxing lessons. He felt the boy needed to toughen up. Joe asked [Dale] if his uncle [John] had any experience with cars.
[{('George', 'brother', 'Dale'): [('George', 'son', 'John'), ('John', 'uncle', 'Dale')]}]
['son', 'uncle']