[Cindy] invited her brothers [Hugh] and [Joshua] over for dinner last Saturday. Her daughter [Wilhelmina] had fun playing ball with them.
('Joshua', 'Wilhelmina')
[Cindy] invited her brothers [Hugh] and [Joshua] over for dinner last Saturday. Her daughter [Wilhelmina] had fun playing ball with them.
[{('Joshua', 'niece', 'Wilhelmina'): [('Joshua', 'sister', 'Cindy'), ('Cindy', 'daughter', 'Wilhelmina')]}, {('Joshua', 'sister', 'Cindy'): [('Joshua', 'brother', 'Hugh'), ('Hugh', 'sister', 'Cindy')]}]
['brother', 'sister', 'daughter']