[Nicholas] likes to take his daughter [Mary] fishing. [George] went his brother to pick up his brother's daughter [Mary] from a birthday party.
('Nicholas', 'George')
[Nicholas] likes to take his daughter [Mary] fishing. [George] went his brother to pick up his brother's daughter [Mary] from a birthday party.
[{('Nicholas', 'brother', 'George'): [('Nicholas', 'daughter', 'Mary'), ('Mary', 'uncle', 'George')]}]
['daughter', 'uncle']