[Dale] and his brother [Wayne] are fighting again. [Dale] was so proud that his son [Nicolas] won the science fair!
('Wayne', 'Nicolas')
[Dale] and his brother [Wayne] are fighting again. [Dale] was so proud that his son [Nicolas] won the science fair!
[{('Wayne', 'nephew', 'Nicolas'): [('Wayne', 'brother', 'Dale'), ('Dale', 'son', 'Nicolas')]}]
['brother', 'son']