[Ann] and [Andrea] are siblings. [Ann] went to [George], her father.
('Andrea', 'George')
[Ann] and [Andrea] are siblings. [Ann] went to [George], her father.
[{('Andrea', 'father', 'George'): [('Andrea', 'sister', 'Ann'), ('Ann', 'father', 'George')]}]
['sister', 'father']