[Marie] took her daughter [Michelle] to the movies. [Michelle]'s brother [Allan] was glad because he had the house all to himself finally. [Pedro] is in the same grade as his sister [Tracy], but his sister [Marie] is 2 years ahead of him.
('Tracy', 'Allan')
[Pedro] is in the same grade as his sister [Tracy], but his sister [Marie] is 2 years ahead of him. [Marie] took her daughter [Michelle] to the movies. [Michelle]'s brother [Allan] was glad because he had the house all to himself finally.
[{('Tracy', 'nephew', 'Allan'): [('Tracy', 'sister', 'Marie'), ('Marie', 'son', 'Allan')]}, {('Tracy', 'sister', 'Marie'): [('Tracy', 'brother', 'Pedro'), ('Pedro', 'sister', 'Marie')]}, {('Marie', 'son', 'Allan'): [('Marie', 'daughter', 'Michelle'), ('Michelle', 'brother', 'Allan')]}]
['brother', 'sister', 'daughter', 'brother']