[Nicholas] and his brother [George] wanted to backpack across Europe together once they graduated college. [George] and his daughter [Ann] spent Father's Day together. [Ann] took her dad out to a sports bar, and they had a great time watching football and drinking beer there.
('Nicholas', 'Ann')
[Nicholas] and his brother [George] wanted to backpack across Europe together once they graduated college. [George] and his daughter [Ann] spent Father's Day together. [Ann] took her dad out to a sports bar, and they had a great time watching football and drinking beer there.
[{('Nicholas', 'niece', 'Ann'): [('Nicholas', 'brother', 'George'), ('George', 'daughter', 'Ann')]}]
['brother', 'daughter']