[Robert] and his father [Wayne] went to town for some supplies. While in town they ran into [Wayne]'s brother, [George].
('Robert', 'George')
[Robert] and his father [Wayne] went to town for some supplies. While in town they ran into [Wayne]'s brother, [George].
[{('Robert', 'uncle', 'George'): [('Robert', 'father', 'Wayne'), ('Wayne', 'brother', 'George')]}]
['father', 'brother']