[Tracy], [Antonio]'s wife sings beautifully. He is appreciative of her voice. [Marie] was talking about food with her sister [Dorothy]. [Tracy] loves cooking for her son. His name is [Kevin]. [Kevin] brought his mother to see her sister [Marie].
('Antonio', 'Dorothy')
[Tracy], [Antonio]'s wife sings beautifully. He is appreciative of her voice. [Tracy] loves cooking for her son. His name is [Kevin]. [Kevin] brought his mother to see her sister [Marie]. [Marie] was talking about food with her sister [Dorothy].
[{('Antonio', 'sister', 'Dorothy'): [('Antonio', 'sister', 'Marie'), ('Marie', 'sister', 'Dorothy')]}, {('Antonio', 'sister', 'Marie'): [('Antonio', 'son', 'Kevin'), ('Kevin', 'aunt', 'Marie')]}, {('Antonio', 'son', 'Kevin'): [('Antonio', 'wife', 'Tracy'), ('Tracy', 'son', 'Kevin')]}]
['wife', 'son', 'aunt', 'sister']