[Antonio] and his brother, [Louis], went to the lake to catch some trout. [Antonio]'s brother [Pedro] was invited, but he did n't go because he could n't stand seeing fish get hooked. [Robert] called his brother [Louis] and invited him to his son [John]'s football game.
('John', 'Pedro')
[Robert] called his brother [Louis] and invited him to his son [John]'s football game. [Antonio] and his brother, [Louis], went to the lake to catch some trout. [Antonio]'s brother [Pedro] was invited, but he did n't go because he could n't stand seeing fish get hooked.
[{('John', 'uncle', 'Pedro'): [('John', 'father', 'Robert'), ('Robert', 'brother', 'Pedro')]}, {('Robert', 'brother', 'Pedro'): [('Robert', 'brother', 'Louis'), ('Louis', 'brother', 'Pedro')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'brother', 'Antonio'), ('Antonio', 'brother', 'Pedro')]}]
['father', 'brother', 'brother', 'brother']