[Joshua] took his sister [Lena] to the movies with him to see the new Star Wars film. [Frances] took her son, [Joshua], to the movie theater for his birthday. [Lena] was mad at her brother [Hugh], because [Hugh] had called her fat.
('Frances', 'Hugh')
[Frances] took her son, [Joshua], to the movie theater for his birthday. [Joshua] took his sister [Lena] to the movies with him to see the new Star Wars film. [Lena] was mad at her brother [Hugh], because [Hugh] had called her fat.
[{('Frances', 'son', 'Hugh'): [('Frances', 'daughter', 'Lena'), ('Lena', 'brother', 'Hugh')]}, {('Frances', 'daughter', 'Lena'): [('Frances', 'son', 'Joshua'), ('Joshua', 'sister', 'Lena')]}]
['son', 'sister', 'brother']