[Andrea] and her father [George] love to go skiing. Often, [George] will invite his mother [Ashley] to join them.
('Andrea', 'Ashley')
[Andrea] and her father [George] love to go skiing. Often, [George] will invite his mother [Ashley] to join them.
[{('Andrea', 'grandmother', 'Ashley'): [('Andrea', 'father', 'George'), ('George', 'mother', 'Ashley')]}]
['father', 'mother']