[Pedro] did n't get along very well with his sister [Marie] for some reason. [Mario]'s uncle, [Antonio], was being very loud at the dinner table. [Marie] loves cooking for her son. His name is [Mario]. [Antonio] took his brother [Louis] out to get drinks after a long work week.
('Pedro', 'Louis')
[Pedro] did n't get along very well with his sister [Marie] for some reason. [Marie] loves cooking for her son. His name is [Mario]. [Mario]'s uncle, [Antonio], was being very loud at the dinner table. [Antonio] took his brother [Louis] out to get drinks after a long work week.
[{('Pedro', 'brother', 'Louis'): [('Pedro', 'brother', 'Antonio'), ('Antonio', 'brother', 'Louis')]}, {('Pedro', 'brother', 'Antonio'): [('Pedro', 'sister', 'Marie'), ('Marie', 'brother', 'Antonio')]}, {('Marie', 'brother', 'Antonio'): [('Marie', 'son', 'Mario'), ('Mario', 'uncle', 'Antonio')]}]
['sister', 'son', 'uncle', 'brother']