[Antonio] went to the baseball game with his son [Aaron] [Tracy] and her son [Aaron] had lunch together at a local Chinese restaurant. [Louis] and her sister [Tracy] decided to take a trip to Mexico together. [Antonio] took his brother [Robert] to get lunch at a local diner.
('Robert', 'Louis')
[Antonio] took his brother [Robert] to get lunch at a local diner. [Antonio] went to the baseball game with his son [Aaron] [Tracy] and her son [Aaron] had lunch together at a local Chinese restaurant. [Louis] and her sister [Tracy] decided to take a trip to Mexico together.
[{('Robert', 'brother', 'Louis'): [('Robert', 'brother', 'Antonio'), ('Antonio', 'brother', 'Louis')]}, {('Antonio', 'brother', 'Louis'): [('Antonio', 'son', 'Aaron'), ('Aaron', 'uncle', 'Louis')]}, {('Aaron', 'uncle', 'Louis'): [('Aaron', 'mother', 'Tracy'), ('Tracy', 'brother', 'Louis')]}]
['brother', 'son', 'mother', 'brother']