[Lena] went to the park with her sisters [David] and [Lynn]. [Lynn]'s brother [Francisco] did n't want to go though.
('Francisco', 'David')
[Lena] went to the park with her sisters [David] and [Lynn]. [Lynn]'s brother [Francisco] did n't want to go though.
[{('Francisco', 'sister', 'David'): [('Francisco', 'sister', 'Lena'), ('Lena', 'sister', 'David')]}, {('Francisco', 'sister', 'Lena'): [('Francisco', 'sister', 'Lynn'), ('Lynn', 'sister', 'Lena')]}]
['sister', 'sister', 'sister']