[Marie] and her sister [Vanetta] braided each other's hair before school. [Michael] and his sister [Vanetta] went to the ice skating rink. [Michael] fell down and [Vanetta] laughed at him. [Michael] and his sister [Evangeline] stood in line at the fair.
('Evangeline', 'Marie')
[Michael] and his sister [Evangeline] stood in line at the fair. [Michael] and his sister [Vanetta] went to the ice skating rink. [Michael] fell down and [Vanetta] laughed at him. [Marie] and her sister [Vanetta] braided each other's hair before school.
[{('Evangeline', 'sister', 'Marie'): [('Evangeline', 'sister', 'Vanetta'), ('Vanetta', 'sister', 'Marie')]}, {('Evangeline', 'sister', 'Vanetta'): [('Evangeline', 'brother', 'Michael'), ('Michael', 'sister', 'Vanetta')]}]
['brother', 'sister', 'sister']