[Antonio] was having an argument with her sister, [Marie]. [Allan] went to the wedding ceremony for his brother [Mario]. [Robert] went shopping with his wife [Marie]. [Robert] was happy that his son [Allan] was doing well in college.
('Antonio', 'Mario')
[Antonio] was having an argument with her sister, [Marie]. [Robert] went shopping with his wife [Marie]. [Robert] was happy that his son [Allan] was doing well in college. [Allan] went to the wedding ceremony for his brother [Mario].
[{('Antonio', 'nephew', 'Mario'): [('Antonio', 'sister', 'Marie'), ('Marie', 'son', 'Mario')]}, {('Marie', 'son', 'Mario'): [('Marie', 'son', 'Allan'), ('Allan', 'brother', 'Mario')]}, {('Marie', 'son', 'Allan'): [('Marie', 'husband', 'Robert'), ('Robert', 'son', 'Allan')]}]
['sister', 'husband', 'son', 'brother']