[Nicholas] took his niece [Janet] to the park to walk her dog. [George] is coaching his daughter [Janet]'s softball team this summer.
('George', 'Nicholas')
[George] is coaching his daughter [Janet]'s softball team this summer. [Nicholas] took his niece [Janet] to the park to walk her dog.
[{('George', 'brother', 'Nicholas'): [('George', 'daughter', 'Janet'), ('Janet', 'uncle', 'Nicholas')]}]
['daughter', 'uncle']