[Lena] and [Joshua] have a brother named [Hugh] [Hugh] took his sister [Cindy] to the movies with him to see the new Star Wars film.
('Joshua', 'Cindy')
[Lena] and [Joshua] have a brother named [Hugh] [Hugh] took his sister [Cindy] to the movies with him to see the new Star Wars film.
[{('Joshua', 'sister', 'Cindy'): [('Joshua', 'sister', 'Lena'), ('Lena', 'sister', 'Cindy')]}, {('Lena', 'sister', 'Cindy'): [('Lena', 'brother', 'Hugh'), ('Hugh', 'sister', 'Cindy')]}]
['sister', 'brother', 'sister']