[Pedro] took his nephew [Paul] fishing for his birthday. They had a great time. [Beverly] and her sister [Tracy] had apple pie for dessert. [Paul], [Beverly]'s son, had cherry pie instead. [Pedro]'s father, [Harold], recently had a falling out with each other.
('Tracy', 'Harold')
[Beverly] and her sister [Tracy] had apple pie for dessert. [Paul], [Beverly]'s son, had cherry pie instead. [Pedro] took his nephew [Paul] fishing for his birthday. They had a great time. [Pedro]'s father, [Harold], recently had a falling out with each other.
[{('Tracy', 'father', 'Harold'): [('Tracy', 'sister', 'Beverly'), ('Beverly', 'father', 'Harold')]}, {('Beverly', 'father', 'Harold'): [('Beverly', 'brother', 'Pedro'), ('Pedro', 'father', 'Harold')]}, {('Beverly', 'brother', 'Pedro'): [('Beverly', 'son', 'Paul'), ('Paul', 'uncle', 'Pedro')]}]
['sister', 'son', 'uncle', 'father']