[Kevin]'s aunt, [Marie], was ten minutes late to his baseball game. [Antonio] does not know he has a son named [Kevin]. [Tracy] and her sister [Marie] braided each other's hair before school. [Antonio] took his brother [Pedro] to get lunch at a local diner.
('Pedro', 'Tracy')
[Antonio] took his brother [Pedro] to get lunch at a local diner. [Antonio] does not know he has a son named [Kevin]. [Kevin]'s aunt, [Marie], was ten minutes late to his baseball game. [Tracy] and her sister [Marie] braided each other's hair before school.
[{('Pedro', 'sister', 'Tracy'): [('Pedro', 'sister', 'Marie'), ('Marie', 'sister', 'Tracy')]}, {('Pedro', 'sister', 'Marie'): [('Pedro', 'brother', 'Antonio'), ('Antonio', 'sister', 'Marie')]}, {('Antonio', 'sister', 'Marie'): [('Antonio', 'son', 'Kevin'), ('Kevin', 'aunt', 'Marie')]}]
['brother', 'son', 'aunt', 'sister']