[Antonio]'s son [Kevin] had a recital, so [Antonio] asked his sister [Marie] if she wanted to go. Joe asked [Louis] if his uncle [Kevin] had any experience with cars. [Pedro] and his brother [Louis] are fighting again.
('Marie', 'Pedro')
[Antonio]'s son [Kevin] had a recital, so [Antonio] asked his sister [Marie] if she wanted to go. Joe asked [Louis] if his uncle [Kevin] had any experience with cars. [Pedro] and his brother [Louis] are fighting again.
[{('Marie', 'brother', 'Pedro'): [('Marie', 'brother', 'Antonio'), ('Antonio', 'brother', 'Pedro')]}, {('Antonio', 'brother', 'Pedro'): [('Antonio', 'brother', 'Louis'), ('Louis', 'brother', 'Pedro')]}, {('Antonio', 'brother', 'Louis'): [('Antonio', 'son', 'Kevin'), ('Kevin', 'uncle', 'Louis')]}]
['brother', 'son', 'uncle', 'brother']