[Pedro] is a sibling of [Antonio]. [Antonio] and his son, [Bobby], went to visit [Harold]. [Bobby] is always so happy to go see his grandfather. [Pedro] wanted his son, [Jeffrey], to go fishing with him.
('Jeffrey', 'Harold')
[Pedro] wanted his son, [Jeffrey], to go fishing with him. [Pedro] is a sibling of [Antonio]. [Antonio] and his son, [Bobby], went to visit [Harold]. [Bobby] is always so happy to go see his grandfather.
[{('Jeffrey', 'grandfather', 'Harold'): [('Jeffrey', 'father', 'Pedro'), ('Pedro', 'father', 'Harold')]}, {('Pedro', 'father', 'Harold'): [('Pedro', 'brother', 'Antonio'), ('Antonio', 'father', 'Harold')]}, {('Antonio', 'father', 'Harold'): [('Antonio', 'son', 'Bobby'), ('Bobby', 'grandfather', 'Harold')]}]
['father', 'brother', 'son', 'grandfather']