[Cindy]'s son [Leonard] and brother [Hugh] came to her birthday party last weekend. [Wayne] and his brother [Leonard] went to the arcade. They had a wonderful time.
('Hugh', 'Wayne')
[Cindy]'s son [Leonard] and brother [Hugh] came to her birthday party last weekend. [Wayne] and his brother [Leonard] went to the arcade. They had a wonderful time.
[{('Hugh', 'nephew', 'Wayne'): [('Hugh', 'sister', 'Cindy'), ('Cindy', 'son', 'Wayne')]}, {('Cindy', 'son', 'Wayne'): [('Cindy', 'son', 'Leonard'), ('Leonard', 'brother', 'Wayne')]}]
['sister', 'son', 'brother']