[Tracy] asked her brother, [Robert], what he was doing this weekend. [Robert] told her he was spending it with his brother [Louis]. [Bobby] made his moth [Tracy] a mother's day gift at school. [Aaron] always looked up to his brother [Bobby].
('Aaron', 'Louis')
[Aaron] always looked up to his brother [Bobby]. [Bobby] made his moth [Tracy] a mother's day gift at school. [Tracy] asked her brother, [Robert], what he was doing this weekend. [Robert] told her he was spending it with his brother [Louis].
[{('Aaron', 'uncle', 'Louis'): [('Aaron', 'mother', 'Tracy'), ('Tracy', 'brother', 'Louis')]}, {('Tracy', 'brother', 'Louis'): [('Tracy', 'brother', 'Robert'), ('Robert', 'brother', 'Louis')]}, {('Aaron', 'mother', 'Tracy'): [('Aaron', 'brother', 'Bobby'), ('Bobby', 'mother', 'Tracy')]}]
['brother', 'mother', 'brother', 'brother']