[Jerry] and his brother, [Timothy], went to the lake to catch some trout. [Jerry]'s brother [John] was invited, but he did n't go because he could n't stand seeing fish get hooked.
('Timothy', 'John')
[Jerry] and his brother, [Timothy], went to the lake to catch some trout. [Jerry]'s brother [John] was invited, but he did n't go because he could n't stand seeing fish get hooked.
[{('Timothy', 'brother', 'John'): [('Timothy', 'brother', 'Jerry'), ('Jerry', 'brother', 'John')]}]
['brother', 'brother']