[Wayne] 'son [Jacob] could not believe that his father bought him a coffee machine for his birthday. [Jacob] and his brother [Jeff] wanted to backpack across Europe together once they graduated college.
('Wayne', 'Jeff')
[Wayne] 'son [Jacob] could not believe that his father bought him a coffee machine for his birthday. [Jacob] and his brother [Jeff] wanted to backpack across Europe together once they graduated college.
[{('Wayne', 'son', 'Jeff'): [('Wayne', 'son', 'Jacob'), ('Jacob', 'brother', 'Jeff')]}]
['son', 'brother']