[Pedro] asked his brother [Robert] to help him fix his car and he said he would after he got off work. [Harold] loved teaching his son, [Pedro], baseball. [Bernardo] loves to play baseball with his dad, [Antonio]. [Antonio] is [Robert]'s Brother.
('Harold', 'Bernardo')
[Harold] loved teaching his son, [Pedro], baseball. [Pedro] asked his brother [Robert] to help him fix his car and he said he would after he got off work. [Antonio] is [Robert]'s Brother. [Bernardo] loves to play baseball with his dad, [Antonio].
[{('Harold', 'grandson', 'Bernardo'): [('Harold', 'son', 'Antonio'), ('Antonio', 'son', 'Bernardo')]}, {('Harold', 'son', 'Antonio'): [('Harold', 'son', 'Pedro'), ('Pedro', 'brother', 'Antonio')]}, {('Pedro', 'brother', 'Antonio'): [('Pedro', 'brother', 'Robert'), ('Robert', 'brother', 'Antonio')]}]
['son', 'brother', 'brother', 'son']