[Antonio] and his daughter, [Laura] had tea. [Louis] went to the mall with his brother, [Antonio], and his sister, [Dorothy]. [Dorothy]'s sister [Marie] wanted to come too, but she had an emergency and could n't make it.
('Laura', 'Marie')
[Antonio] and his daughter, [Laura] had tea. [Louis] went to the mall with his brother, [Antonio], and his sister, [Dorothy]. [Dorothy]'s sister [Marie] wanted to come too, but she had an emergency and could n't make it.
[{('Laura', 'aunt', 'Marie'): [('Laura', 'father', 'Antonio'), ('Antonio', 'sister', 'Marie')]}, {('Antonio', 'sister', 'Marie'): [('Antonio', 'brother', 'Louis'), ('Louis', 'sister', 'Marie')]}, {('Louis', 'sister', 'Marie'): [('Louis', 'sister', 'Dorothy'), ('Dorothy', 'sister', 'Marie')]}]
['father', 'brother', 'sister', 'sister']