[Harold] 'son [Pedro] could not believe that his father bought him a coffee machine for his birthday. [Harold] and his son [Robert] are playing in the park with [Robert]'s daughter [Angelica]. [Pedro] and his brother [Antonio] played at jacks.
('Angelica', 'Antonio')
[Harold] and his son [Robert] are playing in the park with [Robert]'s daughter [Angelica]. [Harold] 'son [Pedro] could not believe that his father bought him a coffee machine for his birthday. [Pedro] and his brother [Antonio] played at jacks.
[{('Angelica', 'uncle', 'Antonio'): [('Angelica', 'father', 'Robert'), ('Robert', 'brother', 'Antonio')]}, {('Robert', 'brother', 'Antonio'): [('Robert', 'father', 'Harold'), ('Harold', 'son', 'Antonio')]}, {('Harold', 'son', 'Antonio'): [('Harold', 'son', 'Pedro'), ('Pedro', 'brother', 'Antonio')]}]
['father', 'father', 'son', 'brother']