[Michael] asked his father, [Louis] to help him build a birdhouse. [James]'s uncle [Louis] loved hanging out with him. [Dorothy] and her sister [Tracy] had apple pie for dessert. [James], [Dorothy]'s son, had cherry pie instead.
('Tracy', 'Michael')
[Dorothy] and her sister [Tracy] had apple pie for dessert. [James], [Dorothy]'s son, had cherry pie instead. [James]'s uncle [Louis] loved hanging out with him. [Michael] asked his father, [Louis] to help him build a birdhouse.
[{('Tracy', 'nephew', 'Michael'): [('Tracy', 'brother', 'Louis'), ('Louis', 'son', 'Michael')]}, {('Tracy', 'brother', 'Louis'): [('Tracy', 'sister', 'Dorothy'), ('Dorothy', 'brother', 'Louis')]}, {('Dorothy', 'brother', 'Louis'): [('Dorothy', 'son', 'James'), ('James', 'uncle', 'Louis')]}]
['sister', 'son', 'uncle', 'son']