[Hugh] 'son [Johnson] could not believe that his father bought him a coffee machine for his birthday. [James] is a male and has a child. This child has a wonderful son named [Bobby]. [Bobby] is a loving grandson to [James] and they co-exist in harmony. [Bobby]'s father, [Hugh], bought him some ice cream.
('James', 'Johnson')
[James] is a male and has a child. This child has a wonderful son named [Bobby]. [Bobby] is a loving grandson to [James] and they co-exist in harmony. [Bobby]'s father, [Hugh], bought him some ice cream. [Hugh] 'son [Johnson] could not believe that his father bought him a coffee machine for his birthday.
[{('James', 'grandson', 'Johnson'): [('James', 'grandson', 'Bobby'), ('Bobby', 'brother', 'Johnson')]}, {('Bobby', 'brother', 'Johnson'): [('Bobby', 'father', 'Hugh'), ('Hugh', 'son', 'Johnson')]}]
['grandson', 'father', 'son']