[Johnson] and his brother [Michael] went to the football game together. [Vanetta] and her sister, [Marie] and her brother, [Michael] do not get along at all.
('Johnson', 'Marie')
[Johnson] and his brother [Michael] went to the football game together. [Vanetta] and her sister, [Marie] and her brother, [Michael] do not get along at all.
[{('Johnson', 'sister', 'Marie'): [('Johnson', 'brother', 'Michael'), ('Michael', 'sister', 'Marie')]}, {('Michael', 'sister', 'Marie'): [('Michael', 'sister', 'Vanetta'), ('Vanetta', 'sister', 'Marie')]}]
['brother', 'sister', 'sister']