[George] and his brother [Nicholas] had a fight. They did n't speak to each other for a whole week afterwards. [Andrea] was ill, that's why she could n't go to school. She was with her mother [George] all day.
('Nicholas', 'Andrea')
[George] and his brother [Nicholas] had a fight. They did n't speak to each other for a whole week afterwards. [Andrea] was ill, that's why she could n't go to school. She was with her mother [George] all day.
[{('Nicholas', 'niece', 'Andrea'): [('Nicholas', 'brother', 'George'), ('George', 'daughter', 'Andrea')]}]
['brother', 'daughter']