[Leonard] needed his brother, [Wayne], to help with a problem [Cindy]'s son [Leonard] and brother [Joshua] came to her birthday party last weekend.
('Joshua', 'Wayne')
[Cindy]'s son [Leonard] and brother [Joshua] came to her birthday party last weekend. [Leonard] needed his brother, [Wayne], to help with a problem
[{('Joshua', 'nephew', 'Wayne'): [('Joshua', 'sister', 'Cindy'), ('Cindy', 'son', 'Wayne')]}, {('Cindy', 'son', 'Wayne'): [('Cindy', 'son', 'Leonard'), ('Leonard', 'brother', 'Wayne')]}]
['sister', 'son', 'brother']