[Ernest] and [Robert] get along pretty well but it has nothing to do with [Ernest] being the uncle of [Robert]. [John] 'son [Robert] could not believe that his father bought him a coffee machine for his birthday.
('John', 'Ernest')
[John] 'son [Robert] could not believe that his father bought him a coffee machine for his birthday. [Ernest] and [Robert] get along pretty well but it has nothing to do with [Ernest] being the uncle of [Robert].
[{('John', 'brother', 'Ernest'): [('John', 'son', 'Robert'), ('Robert', 'uncle', 'Ernest')]}]