[Beverly] and her sister [Pedro] went to the ice cream shop. [Pedro] and his brother [Antonio] like to go to the movies every weekend. [Dorothy] has started to accompany her brother [Antonio] to the movies whenever he goes. [Dorothy] and her sister [Marie] braided each other's hair before school.
('Marie', 'Beverly')
[Dorothy] and her sister [Marie] braided each other's hair before school. [Pedro] and his brother [Antonio] like to go to the movies every weekend. [Dorothy] has started to accompany her brother [Antonio] to the movies whenever he goes. [Beverly] and her sister [Pedro] went to the ice cream shop.
[{('Marie', 'sister', 'Beverly'): [('Marie', 'brother', 'Antonio'), ('Antonio', 'sister', 'Beverly')]}, {('Marie', 'brother', 'Antonio'): [('Marie', 'sister', 'Dorothy'), ('Dorothy', 'brother', 'Antonio')]}, {('Antonio', 'sister', 'Beverly'): [('Antonio', 'brother', 'Pedro'), ('Pedro', 'sister', 'Beverly')]}]
['sister', 'brother', 'brother', 'sister']