[Dale] and his brother [George] went to the carnival. [George] wanted to ride the Ferris wheel, but [Dale] insisted they go on the bumper cars first. [Dale] is an engineer who loves to take his son [Tony] to the science museum to help him learn about the world
('George', 'Tony')
[Dale] and his brother [George] went to the carnival. [George] wanted to ride the Ferris wheel, but [Dale] insisted they go on the bumper cars first. [Dale] is an engineer who loves to take his son [Tony] to the science museum to help him learn about the world
[{('George', 'nephew', 'Tony'): [('George', 'brother', 'Dale'), ('Dale', 'son', 'Tony')]}]
['brother', 'son']