[Glen] went to the football game with his uncle [Dale]. [Nicholas] was so proud that his son [Glen] won the science fair!
('Nicholas', 'Dale')
[Nicholas] was so proud that his son [Glen] won the science fair! [Glen] went to the football game with his uncle [Dale].
[{('Nicholas', 'brother', 'Dale'): [('Nicholas', 'son', 'Glen'), ('Glen', 'uncle', 'Dale')]}]
['son', 'uncle']