[Jerry] and his brother [John] went to the carnival. [John] wanted to ride the Ferris wheel, but [Jerry] insisted they go on the bumper cars first. [George] and his son [Jerry] went to the skating rink.
('John', 'George')
[Jerry] and his brother [John] went to the carnival. [John] wanted to ride the Ferris wheel, but [Jerry] insisted they go on the bumper cars first. [George] and his son [Jerry] went to the skating rink.
[{('John', 'father', 'George'): [('John', 'brother', 'Jerry'), ('Jerry', 'father', 'George')]}]
['brother', 'father']