[Kevin] is son of [Nancy]. [George]'s sister [Nancy] asked him for some help planting her garden.
('Kevin', 'George')
[Kevin] is son of [Nancy]. [George]'s sister [Nancy] asked him for some help planting her garden.
[{('Kevin', 'uncle', 'George'): [('Kevin', 'mother', 'Nancy'), ('Nancy', 'brother', 'George')]}]
['mother', 'brother']