[Dale] was proud of his son, [Tony]. [Dale] and her sister [Amy] decided to take a trip to Mexico together.
('Amy', 'Tony')
[Dale] and her sister [Amy] decided to take a trip to Mexico together. [Dale] was proud of his son, [Tony].
[{('Amy', 'nephew', 'Tony'): [('Amy', 'brother', 'Dale'), ('Dale', 'son', 'Tony')]}]
['brother', 'son']