[April]'s sister, [Janet], needed help fixing her car. [Janet]'s father, [George], offered to do it for her.
('April', 'George')
[April]'s sister, [Janet], needed help fixing her car. [Janet]'s father, [George], offered to do it for her.
[{('April', 'father', 'George'): [('April', 'sister', 'Janet'), ('Janet', 'father', 'George')]}]
['sister', 'father']